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2000 Civic SiR low, rough idle
Hey, I was wondering if anyone could shed some light on what would be
causing this: 2000 civic sir with 120000km on it. Intermittently idles low, like 150rpm, with a rough feel to it. If I tap the gas rpms jump then just drop right back down to 150rpm or so (the line just above the very bottom line on the tach). It slowly comes back up to 750rpm or so but if you tap the pedal it drops right back down again. It can do it once or 4 to 5 times in a row this way. Oil changes done regularly and according to the user manual the plugs don't need to be done until 160000km. thanks for any advice dave dcox@NOSPAMhfx.eastlink.ca |
Re: 2000 Civic SiR low, rough idle
Forgot to mention... it has a Short ram air intake as the only engine mod.
"JEHU" <dcoxNOSPAM@hfx.eastlink.ca> wrote in message news:whWOd.46440$tU6.2706@edtnps91... > Hey, I was wondering if anyone could shed some light on what would be > causing this: > 2000 civic sir with 120000km on it. > Intermittently idles low, like 150rpm, with a rough feel to it. If I tap > the gas rpms jump then just drop right back down to 150rpm or so (the line > just above the very bottom line on the tach). It slowly comes back up to > 750rpm or so but if you tap the pedal it drops right back down again. It > can do it once or 4 to 5 times in a row this way. Oil changes done > regularly and according to the user manual the plugs don't need to be done > until 160000km. > > thanks for any advice > dave > dcox@NOSPAMhfx.eastlink.ca > > |
Re: 2000 Civic SiR low, rough idle
Forgot to mention... it has a Short ram air intake as the only engine mod.
"JEHU" <dcoxNOSPAM@hfx.eastlink.ca> wrote in message news:whWOd.46440$tU6.2706@edtnps91... > Hey, I was wondering if anyone could shed some light on what would be > causing this: > 2000 civic sir with 120000km on it. > Intermittently idles low, like 150rpm, with a rough feel to it. If I tap > the gas rpms jump then just drop right back down to 150rpm or so (the line > just above the very bottom line on the tach). It slowly comes back up to > 750rpm or so but if you tap the pedal it drops right back down again. It > can do it once or 4 to 5 times in a row this way. Oil changes done > regularly and according to the user manual the plugs don't need to be done > until 160000km. > > thanks for any advice > dave > dcox@NOSPAMhfx.eastlink.ca > > |
Re: 2000 Civic SiR low, rough idle
I'm not at all familiar with your model, but most modern cars do that when
the throttle body and/or idle air control valve (when it exists) gets gunked up. Mike "JEHU" <dcoxNOSPAM@hfx.eastlink.ca> wrote in message news:whWOd.46440$tU6.2706@edtnps91... > Hey, I was wondering if anyone could shed some light on what would be > causing this: > 2000 civic sir with 120000km on it. > Intermittently idles low, like 150rpm, with a rough feel to it. If I tap > the gas rpms jump then just drop right back down to 150rpm or so (the line > just above the very bottom line on the tach). It slowly comes back up to > 750rpm or so but if you tap the pedal it drops right back down again. It > can do it once or 4 to 5 times in a row this way. Oil changes done > regularly and according to the user manual the plugs don't need to be done > until 160000km. > > thanks for any advice > dave > dcox@NOSPAMhfx.eastlink.ca > > |
Re: 2000 Civic SiR low, rough idle
I'm not at all familiar with your model, but most modern cars do that when
the throttle body and/or idle air control valve (when it exists) gets gunked up. Mike "JEHU" <dcoxNOSPAM@hfx.eastlink.ca> wrote in message news:whWOd.46440$tU6.2706@edtnps91... > Hey, I was wondering if anyone could shed some light on what would be > causing this: > 2000 civic sir with 120000km on it. > Intermittently idles low, like 150rpm, with a rough feel to it. If I tap > the gas rpms jump then just drop right back down to 150rpm or so (the line > just above the very bottom line on the tach). It slowly comes back up to > 750rpm or so but if you tap the pedal it drops right back down again. It > can do it once or 4 to 5 times in a row this way. Oil changes done > regularly and according to the user manual the plugs don't need to be done > until 160000km. > > thanks for any advice > dave > dcox@NOSPAMhfx.eastlink.ca > > |
Re: 2000 Civic SiR low, rough idle
"JEHU" <dcoxNOSPAM@hfx.eastlink.ca> wrote in
news:ajWOd.46441$tU6.25254@edtnps91: > Forgot to mention... it has a Short ram air intake as the only engine > mod. Ding ding ding! Aftermarket parts! Remove, reinstall original parts and see if problem goes away. -- TeGGeR® The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
Re: 2000 Civic SiR low, rough idle
"JEHU" <dcoxNOSPAM@hfx.eastlink.ca> wrote in
news:ajWOd.46441$tU6.25254@edtnps91: > Forgot to mention... it has a Short ram air intake as the only engine > mod. Ding ding ding! Aftermarket parts! Remove, reinstall original parts and see if problem goes away. -- TeGGeR® The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
Re: 2000 Civic SiR low, rough idle
extremely doubtful an intake would cause this problem, its about as likely
as having a flat spare tire would cause this issue "TeGGer®" <tegger@istop.c0m> wrote in message news:Xns95FADF79A6C9Bteggeratistop@207.14.113.17.. . > "JEHU" <dcoxNOSPAM@hfx.eastlink.ca> wrote in > news:ajWOd.46441$tU6.25254@edtnps91: > >> Forgot to mention... it has a Short ram air intake as the only engine >> mod. > > > > Ding ding ding! Aftermarket parts! > > Remove, reinstall original parts and see if problem goes away. > > > -- > TeGGeR® > > The Unofficial Honda/Acura FAQ > www.tegger.com/hondafaq/ |
Re: 2000 Civic SiR low, rough idle
extremely doubtful an intake would cause this problem, its about as likely
as having a flat spare tire would cause this issue "TeGGer®" <tegger@istop.c0m> wrote in message news:Xns95FADF79A6C9Bteggeratistop@207.14.113.17.. . > "JEHU" <dcoxNOSPAM@hfx.eastlink.ca> wrote in > news:ajWOd.46441$tU6.25254@edtnps91: > >> Forgot to mention... it has a Short ram air intake as the only engine >> mod. > > > > Ding ding ding! Aftermarket parts! > > Remove, reinstall original parts and see if problem goes away. > > > -- > TeGGeR® > > The Unofficial Honda/Acura FAQ > www.tegger.com/hondafaq/ |
Re: 2000 Civic SiR low, rough idle
I can see how faults in an air intake could affect idle. If there is a
flapper (intentional or otherwise) in the intake and it is giving any sort of trouble, it could certainly choke the engine at low air flow (idle). An important first step in troubleshooting is to make everything right, then see what problems you have. Mike "M.C. Tee" <tedwards@LEAVE.ME.ALONEnl.rogers.com> wrote in message news:NNqdnX9j-7N2EpDfRVn-hw@rogers.com... > extremely doubtful an intake would cause this problem, its about as likely > as having a flat spare tire would cause this issue > > > > "TeGGer®" <tegger@istop.c0m> wrote in message > news:Xns95FADF79A6C9Bteggeratistop@207.14.113.17.. . >> "JEHU" <dcoxNOSPAM@hfx.eastlink.ca> wrote in >> news:ajWOd.46441$tU6.25254@edtnps91: >> >>> Forgot to mention... it has a Short ram air intake as the only engine >>> mod. >> >> >> >> Ding ding ding! Aftermarket parts! >> >> Remove, reinstall original parts and see if problem goes away. >> >> >> -- >> TeGGeR® >> >> The Unofficial Honda/Acura FAQ >> www.tegger.com/hondafaq/ > > |
Re: 2000 Civic SiR low, rough idle
I can see how faults in an air intake could affect idle. If there is a
flapper (intentional or otherwise) in the intake and it is giving any sort of trouble, it could certainly choke the engine at low air flow (idle). An important first step in troubleshooting is to make everything right, then see what problems you have. Mike "M.C. Tee" <tedwards@LEAVE.ME.ALONEnl.rogers.com> wrote in message news:NNqdnX9j-7N2EpDfRVn-hw@rogers.com... > extremely doubtful an intake would cause this problem, its about as likely > as having a flat spare tire would cause this issue > > > > "TeGGer®" <tegger@istop.c0m> wrote in message > news:Xns95FADF79A6C9Bteggeratistop@207.14.113.17.. . >> "JEHU" <dcoxNOSPAM@hfx.eastlink.ca> wrote in >> news:ajWOd.46441$tU6.25254@edtnps91: >> >>> Forgot to mention... it has a Short ram air intake as the only engine >>> mod. >> >> >> >> Ding ding ding! Aftermarket parts! >> >> Remove, reinstall original parts and see if problem goes away. >> >> >> -- >> TeGGeR® >> >> The Unofficial Honda/Acura FAQ >> www.tegger.com/hondafaq/ > > |
Re: 2000 Civic SiR low, rough idle
yes, but gathering from what he said, the issue didn't start from adding the
intake, in which case there is nothing that could cause the issue, its a piece of mandrel bent pipe, hard to have something go wrong there "Michael Pardee" <michaeltnull@cybertrails.com> wrote in message news:aIWdnfFrepkVY5DfRVn-sQ@sedona.net... >I can see how faults in an air intake could affect idle. If there is a >flapper (intentional or otherwise) in the intake and it is giving any sort >of trouble, it could certainly choke the engine at low air flow (idle). > > An important first step in troubleshooting is to make everything right, > then see what problems you have. > > Mike > > "M.C. Tee" <tedwards@LEAVE.ME.ALONEnl.rogers.com> wrote in message > news:NNqdnX9j-7N2EpDfRVn-hw@rogers.com... >> extremely doubtful an intake would cause this problem, its about as >> likely as having a flat spare tire would cause this issue >> >> >> >> "TeGGer®" <tegger@istop.c0m> wrote in message >> news:Xns95FADF79A6C9Bteggeratistop@207.14.113.17.. . >>> "JEHU" <dcoxNOSPAM@hfx.eastlink.ca> wrote in >>> news:ajWOd.46441$tU6.25254@edtnps91: >>> >>>> Forgot to mention... it has a Short ram air intake as the only engine >>>> mod. >>> >>> >>> >>> Ding ding ding! Aftermarket parts! >>> >>> Remove, reinstall original parts and see if problem goes away. >>> >>> >>> -- >>> TeGGeR® >>> >>> The Unofficial Honda/Acura FAQ >>> www.tegger.com/hondafaq/ >> >> > > |
Re: 2000 Civic SiR low, rough idle
yes, but gathering from what he said, the issue didn't start from adding the
intake, in which case there is nothing that could cause the issue, its a piece of mandrel bent pipe, hard to have something go wrong there "Michael Pardee" <michaeltnull@cybertrails.com> wrote in message news:aIWdnfFrepkVY5DfRVn-sQ@sedona.net... >I can see how faults in an air intake could affect idle. If there is a >flapper (intentional or otherwise) in the intake and it is giving any sort >of trouble, it could certainly choke the engine at low air flow (idle). > > An important first step in troubleshooting is to make everything right, > then see what problems you have. > > Mike > > "M.C. Tee" <tedwards@LEAVE.ME.ALONEnl.rogers.com> wrote in message > news:NNqdnX9j-7N2EpDfRVn-hw@rogers.com... >> extremely doubtful an intake would cause this problem, its about as >> likely as having a flat spare tire would cause this issue >> >> >> >> "TeGGer®" <tegger@istop.c0m> wrote in message >> news:Xns95FADF79A6C9Bteggeratistop@207.14.113.17.. . >>> "JEHU" <dcoxNOSPAM@hfx.eastlink.ca> wrote in >>> news:ajWOd.46441$tU6.25254@edtnps91: >>> >>>> Forgot to mention... it has a Short ram air intake as the only engine >>>> mod. >>> >>> >>> >>> Ding ding ding! Aftermarket parts! >>> >>> Remove, reinstall original parts and see if problem goes away. >>> >>> >>> -- >>> TeGGeR® >>> >>> The Unofficial Honda/Acura FAQ >>> www.tegger.com/hondafaq/ >> >> > > |
Re: 2000 Civic SiR low, rough idle
"M.C. Tee" <tedwards@LEAVE.ME.ALONEnl.rogers.com> wrote in
news:oM6dnQxPtub_mJPfRVn-gg@rogers.com: > yes, but gathering from what he said, the issue didn't start from > adding the intake, He never said when it started. > in which case there is nothing that could cause the > issue, its a piece of mandrel bent pipe, hard to have something go > wrong there First step in a proper diagnosis: Install original parts. If problem disappears, you know his "short ram" is causing the problem. If the problem recurs, then you know it's not. The OP also has provided very little other information. What would help here is: 1) Does he have EGR? 2) How does the car start? OK? Lots of cranking needed? 3) How's his gas mileage? 4) How is the car off-idle? Any hesitation? 5) When does the low idle start happening? Cold? Warming up? Full warm? 6) Does it happen in the wet and dry, or just in the wet? 7) Does the temperature gauge go up all the way to the middle within 5 or 6 minutes of driving? 8) How new are the ignition wires, cap and rotor? Are they aftermarket too? -- TeGGeR® The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
Re: 2000 Civic SiR low, rough idle
"M.C. Tee" <tedwards@LEAVE.ME.ALONEnl.rogers.com> wrote in
news:oM6dnQxPtub_mJPfRVn-gg@rogers.com: > yes, but gathering from what he said, the issue didn't start from > adding the intake, He never said when it started. > in which case there is nothing that could cause the > issue, its a piece of mandrel bent pipe, hard to have something go > wrong there First step in a proper diagnosis: Install original parts. If problem disappears, you know his "short ram" is causing the problem. If the problem recurs, then you know it's not. The OP also has provided very little other information. What would help here is: 1) Does he have EGR? 2) How does the car start? OK? Lots of cranking needed? 3) How's his gas mileage? 4) How is the car off-idle? Any hesitation? 5) When does the low idle start happening? Cold? Warming up? Full warm? 6) Does it happen in the wet and dry, or just in the wet? 7) Does the temperature gauge go up all the way to the middle within 5 or 6 minutes of driving? 8) How new are the ignition wires, cap and rotor? Are they aftermarket too? -- TeGGeR® The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
Re: 2000 Civic SiR low, rough idle
"JEHU" <dcoxNOSPAM@hfx.eastlink.ca> wrote in
news:whWOd.46440$tU6.2706@edtnps91: > Hey, I was wondering if anyone could shed some light on what would be > causing this: > 2000 civic sir with 120000km on it. > Intermittently idles low, like 150rpm, with a rough feel to it. When? Cold? Warming up? Full-warm? Has the MIL lit up? > If I > tap the gas rpms jump then just drop right back down to 150rpm or so That's 500rpm, not 150. > (the line just above the very bottom line on the tach). It slowly > comes back up to 750rpm or so but if you tap the pedal it drops right > back down again. It can do it once or 4 to 5 times in a row this way. > Oil changes done regularly and according to the user manual the > plugs don't need to be done until 160000km. Does the car warm up so the temp gauge goes to the middle within 5 minutes of driving? Did the problem start soon after you installed the "short ram"? Does it happen even on dry days? Your EACV is attempting to adjust the idle speed to where it should be, so that part of the system is working. How clean was the throttle body when you installed the ram? Did you reset the idle speed properly? -- TeGGeR® The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
Re: 2000 Civic SiR low, rough idle
"JEHU" <dcoxNOSPAM@hfx.eastlink.ca> wrote in
news:whWOd.46440$tU6.2706@edtnps91: > Hey, I was wondering if anyone could shed some light on what would be > causing this: > 2000 civic sir with 120000km on it. > Intermittently idles low, like 150rpm, with a rough feel to it. When? Cold? Warming up? Full-warm? Has the MIL lit up? > If I > tap the gas rpms jump then just drop right back down to 150rpm or so That's 500rpm, not 150. > (the line just above the very bottom line on the tach). It slowly > comes back up to 750rpm or so but if you tap the pedal it drops right > back down again. It can do it once or 4 to 5 times in a row this way. > Oil changes done regularly and according to the user manual the > plugs don't need to be done until 160000km. Does the car warm up so the temp gauge goes to the middle within 5 minutes of driving? Did the problem start soon after you installed the "short ram"? Does it happen even on dry days? Your EACV is attempting to adjust the idle speed to where it should be, so that part of the system is working. How clean was the throttle body when you installed the ram? Did you reset the idle speed properly? -- TeGGeR® The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
Re: 2000 Civic SiR low, rough idle
"TeGGer®" <tegger@istop.c0m> wrote in message
news:Xns95FB60DED6FEAteggeratistop@207.14.113.17.. . > "M.C. Tee" <tedwards@LEAVE.ME.ALONEnl.rogers.com> wrote in > news:oM6dnQxPtub_mJPfRVn-gg@rogers.com: > > First step in a proper diagnosis: Install original parts. > > If problem disappears, you know his "short ram" is causing the problem. If > the problem recurs, then you know it's not. > The root of the problem is that aftermarket parts introduce unknown issues into the system. The customer can spend an enormous amount of money to find, say, mice have built a nest in the ram. Since the problem doesn't appear in the unmodified car because of a nuance of design (possibly learned the hard way by the OEM) it is overlooked. I once spent $900 to have a dealer fix a problem in our Volvo. The problem turned out to be aftermarket injectors I'd put in - they tested perfectly, but for some reason didn't work in the car. Drove me crazy. Mike |
Re: 2000 Civic SiR low, rough idle
"TeGGer®" <tegger@istop.c0m> wrote in message
news:Xns95FB60DED6FEAteggeratistop@207.14.113.17.. . > "M.C. Tee" <tedwards@LEAVE.ME.ALONEnl.rogers.com> wrote in > news:oM6dnQxPtub_mJPfRVn-gg@rogers.com: > > First step in a proper diagnosis: Install original parts. > > If problem disappears, you know his "short ram" is causing the problem. If > the problem recurs, then you know it's not. > The root of the problem is that aftermarket parts introduce unknown issues into the system. The customer can spend an enormous amount of money to find, say, mice have built a nest in the ram. Since the problem doesn't appear in the unmodified car because of a nuance of design (possibly learned the hard way by the OEM) it is overlooked. I once spent $900 to have a dealer fix a problem in our Volvo. The problem turned out to be aftermarket injectors I'd put in - they tested perfectly, but for some reason didn't work in the car. Drove me crazy. Mike |
Re: 2000 Civic SiR low, rough idle
OK first off thanks everyone for the replies.... sorry it took me so long
to repost. This does the same with the OEM intake back on the car. >TeGGeR: >"The OP also has provided very little other information. What would help >here is: >1) Does he have EGR? >2) How does the car start? OK? Lots of cranking needed? >3) How's his gas mileage? >4) How is the car off-idle? Any hesitation? >5) When does the low idle start happening? Cold? Warming up? Full warm? >6) Does it happen in the wet and dry, or just in the wet? >7) Does the temperature gauge go up all the way to the middle within 5 or 6 >minutes of driving? >8) How new are the ignition wires, cap and rotor? Are they aftermarket >too?" 1. I am not sure if I have EGR... 2. Starts well most times but sometimes will turn over more then normal (say 3 to 4 turns I chaulked that up to low fuel) 3. Gas mileage... 300km to 370 per tank... It has been cold her lately and I do 90% city driving, seems low but I used to drive a Civic DX getting 500 to550km per tank. 4. Off-idle... no hesitation, but seems maybe slugish sometimes... but wouldn't be noticable to anyone but me... sometimes i think its just me :0) 5. Idle problem starts happening once it is warmed up. Never when it is cold and idling high to get warm. When started it revs around 1500rpm then once warm it is down to 750rpm and once stable at 750rpm, with a few stop and starts in traffic it drops down to 150 or 200rpm (if you look at the tach it shows a Large white line as 0rpm and then another Large white line that is shorter and the gauge is reading just above that short Large white line. Round 200rpm. Engine sometimes shakes then slowly comes back up to 750rpm. There has been times that if I don't wait for it to come back up and try to take off it sounds like when you dont give the car enough gas before you let the clutch out. 6. Wet dry? doesn't mater if it is wet, dry, warm, cold, does it in all conditions. 7. Temp gauge does go up to the middle like it always has within a few mins of driving.... depending on how cold it is. 8. Ignition wires and plugs are OEM, never changed (platnum plugs changed at 160km I do believe) The plugs + rotor have been "serviced" 2 times by the dealership. Once at 46000km then again at 96000km... (it has 120000km now) > That's 500rpm, not 150. It does go down to 150 or 200. Sometimes when comming off of the mechanical idle and the ecu takes over it will drop to 500rpm for a spit second then quickly come back to 750rpm, but this is different then what i am talking about. MIL has not lit up. I didn't notice any gunk in the throtle body when the SR was installed but then again .. i am not really shore of what I should be looking for? buildup? Blackened areas? How do I reset the Idle speed properly? Leaving the battery off for 20 or 30min? thanks again! "TeGGer®" <tegger@istop.c0m> wrote in message news:Xns95FB611A2FB4teggeratistop@207.14.113.17... > "JEHU" <dcoxNOSPAM@hfx.eastlink.ca> wrote in > news:whWOd.46440$tU6.2706@edtnps91: > >> Hey, I was wondering if anyone could shed some light on what would be >> causing this: >> 2000 civic sir with 120000km on it. >> Intermittently idles low, like 150rpm, with a rough feel to it. > > > When? Cold? Warming up? Full-warm? > > Has the MIL lit up? > > >> If I >> tap the gas rpms jump then just drop right back down to 150rpm or so > > > That's 500rpm, not 150. > > >> (the line just above the very bottom line on the tach). It slowly >> comes back up to 750rpm or so but if you tap the pedal it drops right >> back down again. It can do it once or 4 to 5 times in a row this way. >> Oil changes done regularly and according to the user manual the >> plugs don't need to be done until 160000km. > > > Does the car warm up so the temp gauge goes to the middle within 5 minutes > of driving? > > Did the problem start soon after you installed the "short ram"? > > Does it happen even on dry days? > > Your EACV is attempting to adjust the idle speed to where it should be, so > that part of the system is working. How clean was the throttle body when > you installed the ram? Did you reset the idle speed properly? > > > -- > TeGGeR® > > The Unofficial Honda/Acura FAQ > www.tegger.com/hondafaq/ |
Re: 2000 Civic SiR low, rough idle
OK first off thanks everyone for the replies.... sorry it took me so long
to repost. This does the same with the OEM intake back on the car. >TeGGeR: >"The OP also has provided very little other information. What would help >here is: >1) Does he have EGR? >2) How does the car start? OK? Lots of cranking needed? >3) How's his gas mileage? >4) How is the car off-idle? Any hesitation? >5) When does the low idle start happening? Cold? Warming up? Full warm? >6) Does it happen in the wet and dry, or just in the wet? >7) Does the temperature gauge go up all the way to the middle within 5 or 6 >minutes of driving? >8) How new are the ignition wires, cap and rotor? Are they aftermarket >too?" 1. I am not sure if I have EGR... 2. Starts well most times but sometimes will turn over more then normal (say 3 to 4 turns I chaulked that up to low fuel) 3. Gas mileage... 300km to 370 per tank... It has been cold her lately and I do 90% city driving, seems low but I used to drive a Civic DX getting 500 to550km per tank. 4. Off-idle... no hesitation, but seems maybe slugish sometimes... but wouldn't be noticable to anyone but me... sometimes i think its just me :0) 5. Idle problem starts happening once it is warmed up. Never when it is cold and idling high to get warm. When started it revs around 1500rpm then once warm it is down to 750rpm and once stable at 750rpm, with a few stop and starts in traffic it drops down to 150 or 200rpm (if you look at the tach it shows a Large white line as 0rpm and then another Large white line that is shorter and the gauge is reading just above that short Large white line. Round 200rpm. Engine sometimes shakes then slowly comes back up to 750rpm. There has been times that if I don't wait for it to come back up and try to take off it sounds like when you dont give the car enough gas before you let the clutch out. 6. Wet dry? doesn't mater if it is wet, dry, warm, cold, does it in all conditions. 7. Temp gauge does go up to the middle like it always has within a few mins of driving.... depending on how cold it is. 8. Ignition wires and plugs are OEM, never changed (platnum plugs changed at 160km I do believe) The plugs + rotor have been "serviced" 2 times by the dealership. Once at 46000km then again at 96000km... (it has 120000km now) > That's 500rpm, not 150. It does go down to 150 or 200. Sometimes when comming off of the mechanical idle and the ecu takes over it will drop to 500rpm for a spit second then quickly come back to 750rpm, but this is different then what i am talking about. MIL has not lit up. I didn't notice any gunk in the throtle body when the SR was installed but then again .. i am not really shore of what I should be looking for? buildup? Blackened areas? How do I reset the Idle speed properly? Leaving the battery off for 20 or 30min? thanks again! "TeGGer®" <tegger@istop.c0m> wrote in message news:Xns95FB611A2FB4teggeratistop@207.14.113.17... > "JEHU" <dcoxNOSPAM@hfx.eastlink.ca> wrote in > news:whWOd.46440$tU6.2706@edtnps91: > >> Hey, I was wondering if anyone could shed some light on what would be >> causing this: >> 2000 civic sir with 120000km on it. >> Intermittently idles low, like 150rpm, with a rough feel to it. > > > When? Cold? Warming up? Full-warm? > > Has the MIL lit up? > > >> If I >> tap the gas rpms jump then just drop right back down to 150rpm or so > > > That's 500rpm, not 150. > > >> (the line just above the very bottom line on the tach). It slowly >> comes back up to 750rpm or so but if you tap the pedal it drops right >> back down again. It can do it once or 4 to 5 times in a row this way. >> Oil changes done regularly and according to the user manual the >> plugs don't need to be done until 160000km. > > > Does the car warm up so the temp gauge goes to the middle within 5 minutes > of driving? > > Did the problem start soon after you installed the "short ram"? > > Does it happen even on dry days? > > Your EACV is attempting to adjust the idle speed to where it should be, so > that part of the system is working. How clean was the throttle body when > you installed the ram? Did you reset the idle speed properly? > > > -- > TeGGeR® > > The Unofficial Honda/Acura FAQ > www.tegger.com/hondafaq/ |
Re: 2000 Civic SiR low, rough idle
"JEHU" <dcoxNOSPAM@hfx.eastlink.ca> wrote in
news:62VPd.32524$K54.20791@edtnps84: > > 1. I am not sure if I have EGR... Have a look at the sticker under the hood. It will list some things on one line, like SFI, HO2S, TWC, that sort of thing. If EGR is listed, you've got it. If not, then you don't. > When started it revs > around 1500rpm then once warm it is down to 750rpm and once stable at > 750rpm, with a few stop and starts in traffic it drops down to 150 or > 200rpm (if you look at the tach it shows a Large white line as 0rpm > and then another Large white line that is shorter and the gauge is > reading just above that short Large white line. Round 200rpm. Been a while since I looked at the tach on your generation, but is there not 1) a zero line 2) two lines above that, unevenly spaced, and 3) a 1000rpm line? > Engine sometimes shakes then slowly comes back up to 750rpm. You've got an air leak somewhere, I'm sure. The ECU sees this and is trying to force the idle back up to where it ought to be. Carefully check any and all vacuum connections to the intake plenum. Make sure none are disconnected, pinched, split or misrouted. -- TeGGeR® The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
Re: 2000 Civic SiR low, rough idle
"JEHU" <dcoxNOSPAM@hfx.eastlink.ca> wrote in
news:62VPd.32524$K54.20791@edtnps84: > > 1. I am not sure if I have EGR... Have a look at the sticker under the hood. It will list some things on one line, like SFI, HO2S, TWC, that sort of thing. If EGR is listed, you've got it. If not, then you don't. > When started it revs > around 1500rpm then once warm it is down to 750rpm and once stable at > 750rpm, with a few stop and starts in traffic it drops down to 150 or > 200rpm (if you look at the tach it shows a Large white line as 0rpm > and then another Large white line that is shorter and the gauge is > reading just above that short Large white line. Round 200rpm. Been a while since I looked at the tach on your generation, but is there not 1) a zero line 2) two lines above that, unevenly spaced, and 3) a 1000rpm line? > Engine sometimes shakes then slowly comes back up to 750rpm. You've got an air leak somewhere, I'm sure. The ECU sees this and is trying to force the idle back up to where it ought to be. Carefully check any and all vacuum connections to the intake plenum. Make sure none are disconnected, pinched, split or misrouted. -- TeGGeR® The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
Re: 2000 Civic SiR low, rough idle
Thanks I'll check sticker, tach and vac lines when i get a chance and post
back. "TeGGer®" <tegger@istop.c0m> wrote in message news:Xns95FDB2634D65Cteggeratistop@207.14.113.17.. . > "JEHU" <dcoxNOSPAM@hfx.eastlink.ca> wrote in > news:62VPd.32524$K54.20791@edtnps84: > > >> >> 1. I am not sure if I have EGR... > > > Have a look at the sticker under the hood. It will list some things on one > line, like SFI, HO2S, TWC, that sort of thing. If EGR is listed, you've > got > it. If not, then you don't. > > >> When started it revs >> around 1500rpm then once warm it is down to 750rpm and once stable at >> 750rpm, with a few stop and starts in traffic it drops down to 150 or >> 200rpm (if you look at the tach it shows a Large white line as 0rpm >> and then another Large white line that is shorter and the gauge is >> reading just above that short Large white line. Round 200rpm. > > > > Been a while since I looked at the tach on your generation, but is there > not > 1) a zero line > 2) two lines above that, unevenly spaced, and > 3) a 1000rpm line? > > >> Engine sometimes shakes then slowly comes back up to 750rpm. > > > > You've got an air leak somewhere, I'm sure. The ECU sees this and is > trying > to force the idle back up to where it ought to be. > > Carefully check any and all vacuum connections to the intake plenum. Make > sure none are disconnected, pinched, split or misrouted. > > -- > TeGGeR® > > The Unofficial Honda/Acura FAQ > www.tegger.com/hondafaq/ |
Re: 2000 Civic SiR low, rough idle
Thanks I'll check sticker, tach and vac lines when i get a chance and post
back. "TeGGer®" <tegger@istop.c0m> wrote in message news:Xns95FDB2634D65Cteggeratistop@207.14.113.17.. . > "JEHU" <dcoxNOSPAM@hfx.eastlink.ca> wrote in > news:62VPd.32524$K54.20791@edtnps84: > > >> >> 1. I am not sure if I have EGR... > > > Have a look at the sticker under the hood. It will list some things on one > line, like SFI, HO2S, TWC, that sort of thing. If EGR is listed, you've > got > it. If not, then you don't. > > >> When started it revs >> around 1500rpm then once warm it is down to 750rpm and once stable at >> 750rpm, with a few stop and starts in traffic it drops down to 150 or >> 200rpm (if you look at the tach it shows a Large white line as 0rpm >> and then another Large white line that is shorter and the gauge is >> reading just above that short Large white line. Round 200rpm. > > > > Been a while since I looked at the tach on your generation, but is there > not > 1) a zero line > 2) two lines above that, unevenly spaced, and > 3) a 1000rpm line? > > >> Engine sometimes shakes then slowly comes back up to 750rpm. > > > > You've got an air leak somewhere, I'm sure. The ECU sees this and is > trying > to force the idle back up to where it ought to be. > > Carefully check any and all vacuum connections to the intake plenum. Make > sure none are disconnected, pinched, split or misrouted. > > -- > TeGGeR® > > The Unofficial Honda/Acura FAQ > www.tegger.com/hondafaq/ |
Re: 2000 Civic SiR low, rough idle
> Been a while since I looked at the tach on your generation, but is there
> not > 1) a zero line > 2) two lines above that, unevenly spaced, and > 3) a 1000rpm line? It is pouring down rain today.. so I can't check for the air leak or the sticker but i did look at the tach today. There is a zero line then 5 small lines between the zero and the 1000 line all evenly spaced. The one closest to the zero line is thicker like the zero line. Rpms drop to just above the thick 1st line. "TeGGer®" <tegger@istop.c0m> wrote in message news:Xns95FDB2634D65Cteggeratistop@207.14.113.17.. . > "JEHU" <dcoxNOSPAM@hfx.eastlink.ca> wrote in > news:62VPd.32524$K54.20791@edtnps84: > > >> >> 1. I am not sure if I have EGR... > > > Have a look at the sticker under the hood. It will list some things on one > line, like SFI, HO2S, TWC, that sort of thing. If EGR is listed, you've > got > it. If not, then you don't. > > >> When started it revs >> around 1500rpm then once warm it is down to 750rpm and once stable at >> 750rpm, with a few stop and starts in traffic it drops down to 150 or >> 200rpm (if you look at the tach it shows a Large white line as 0rpm >> and then another Large white line that is shorter and the gauge is >> reading just above that short Large white line. Round 200rpm. > > > > Been a while since I looked at the tach on your generation, but is there > not > 1) a zero line > 2) two lines above that, unevenly spaced, and > 3) a 1000rpm line? > > >> Engine sometimes shakes then slowly comes back up to 750rpm. > > > > You've got an air leak somewhere, I'm sure. The ECU sees this and is > trying > to force the idle back up to where it ought to be. > > Carefully check any and all vacuum connections to the intake plenum. Make > sure none are disconnected, pinched, split or misrouted. > > -- > TeGGeR® > > The Unofficial Honda/Acura FAQ > www.tegger.com/hondafaq/ |
Re: 2000 Civic SiR low, rough idle
> Been a while since I looked at the tach on your generation, but is there
> not > 1) a zero line > 2) two lines above that, unevenly spaced, and > 3) a 1000rpm line? It is pouring down rain today.. so I can't check for the air leak or the sticker but i did look at the tach today. There is a zero line then 5 small lines between the zero and the 1000 line all evenly spaced. The one closest to the zero line is thicker like the zero line. Rpms drop to just above the thick 1st line. "TeGGer®" <tegger@istop.c0m> wrote in message news:Xns95FDB2634D65Cteggeratistop@207.14.113.17.. . > "JEHU" <dcoxNOSPAM@hfx.eastlink.ca> wrote in > news:62VPd.32524$K54.20791@edtnps84: > > >> >> 1. I am not sure if I have EGR... > > > Have a look at the sticker under the hood. It will list some things on one > line, like SFI, HO2S, TWC, that sort of thing. If EGR is listed, you've > got > it. If not, then you don't. > > >> When started it revs >> around 1500rpm then once warm it is down to 750rpm and once stable at >> 750rpm, with a few stop and starts in traffic it drops down to 150 or >> 200rpm (if you look at the tach it shows a Large white line as 0rpm >> and then another Large white line that is shorter and the gauge is >> reading just above that short Large white line. Round 200rpm. > > > > Been a while since I looked at the tach on your generation, but is there > not > 1) a zero line > 2) two lines above that, unevenly spaced, and > 3) a 1000rpm line? > > >> Engine sometimes shakes then slowly comes back up to 750rpm. > > > > You've got an air leak somewhere, I'm sure. The ECU sees this and is > trying > to force the idle back up to where it ought to be. > > Carefully check any and all vacuum connections to the intake plenum. Make > sure none are disconnected, pinched, split or misrouted. > > -- > TeGGeR® > > The Unofficial Honda/Acura FAQ > www.tegger.com/hondafaq/ |
Re: 2000 Civic SiR low, rough idle
"JEHU" <dcoxNOSPAM@hfx.eastlink.ca> wrote in
news:UHvQd.52580$gA4.5839@edtnps89: >> Been a while since I looked at the tach on your generation, but is >> there not >> 1) a zero line >> 2) two lines above that, unevenly spaced, and >> 3) a 1000rpm line? > > It is pouring down rain today.. so I can't check for the air leak or > the sticker but i did look at the tach today. There is a zero line > then 5 small lines between the zero and the 1000 line all evenly > spaced. The one closest to the zero line is thicker like the zero > line. Rpms drop to just above the thick 1st line. That's 500 rpm. Count up. "thick 1st line": 500 2nd line: 600 3rd line: 700 4th line: 800 5th line: 900 1000rpm. The tach does not reliably read below 500. -- TeGGeR® The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
Re: 2000 Civic SiR low, rough idle
"JEHU" <dcoxNOSPAM@hfx.eastlink.ca> wrote in
news:UHvQd.52580$gA4.5839@edtnps89: >> Been a while since I looked at the tach on your generation, but is >> there not >> 1) a zero line >> 2) two lines above that, unevenly spaced, and >> 3) a 1000rpm line? > > It is pouring down rain today.. so I can't check for the air leak or > the sticker but i did look at the tach today. There is a zero line > then 5 small lines between the zero and the 1000 line all evenly > spaced. The one closest to the zero line is thicker like the zero > line. Rpms drop to just above the thick 1st line. That's 500 rpm. Count up. "thick 1st line": 500 2nd line: 600 3rd line: 700 4th line: 800 5th line: 900 1000rpm. The tach does not reliably read below 500. -- TeGGeR® The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
Re: 2000 Civic SiR low, rough idle
Man I should have looked closer! Your right TeGGer, so that means that when
it idles low it drops down to 500rpm or a little above that. "TeGGer®" <tegger@istop.c0m> wrote in message news:Xns95FEC16C0F6ACteggeratistop@207.14.113.17.. . > "JEHU" <dcoxNOSPAM@hfx.eastlink.ca> wrote in > news:UHvQd.52580$gA4.5839@edtnps89: > >>> Been a while since I looked at the tach on your generation, but is >>> there not >>> 1) a zero line >>> 2) two lines above that, unevenly spaced, and >>> 3) a 1000rpm line? >> >> It is pouring down rain today.. so I can't check for the air leak or >> the sticker but i did look at the tach today. There is a zero line >> then 5 small lines between the zero and the 1000 line all evenly >> spaced. The one closest to the zero line is thicker like the zero >> line. Rpms drop to just above the thick 1st line. > > > > That's 500 rpm. Count up. > "thick 1st line": 500 > 2nd line: 600 > 3rd line: 700 > 4th line: 800 > 5th line: 900 > 1000rpm. > > The tach does not reliably read below 500. > > -- > TeGGeR® > > The Unofficial Honda/Acura FAQ > www.tegger.com/hondafaq/ |
Re: 2000 Civic SiR low, rough idle
Man I should have looked closer! Your right TeGGer, so that means that when
it idles low it drops down to 500rpm or a little above that. "TeGGer®" <tegger@istop.c0m> wrote in message news:Xns95FEC16C0F6ACteggeratistop@207.14.113.17.. . > "JEHU" <dcoxNOSPAM@hfx.eastlink.ca> wrote in > news:UHvQd.52580$gA4.5839@edtnps89: > >>> Been a while since I looked at the tach on your generation, but is >>> there not >>> 1) a zero line >>> 2) two lines above that, unevenly spaced, and >>> 3) a 1000rpm line? >> >> It is pouring down rain today.. so I can't check for the air leak or >> the sticker but i did look at the tach today. There is a zero line >> then 5 small lines between the zero and the 1000 line all evenly >> spaced. The one closest to the zero line is thicker like the zero >> line. Rpms drop to just above the thick 1st line. > > > > That's 500 rpm. Count up. > "thick 1st line": 500 > 2nd line: 600 > 3rd line: 700 > 4th line: 800 > 5th line: 900 > 1000rpm. > > The tach does not reliably read below 500. > > -- > TeGGeR® > > The Unofficial Honda/Acura FAQ > www.tegger.com/hondafaq/ |
Re: 2000 Civic SiR low, rough idle
"JEHU" <dcoxNOSPAM@hfx.eastlink.ca> wrote in
news:6pzQd.52676$gA4.39752@edtnps89: > Man I should have looked closer! Your right TeGGer, so that means > that when it idles low it drops down to 500rpm or a little above that. If that's the case, you may simply need an idle speed adjustment. Make sure that throttle body has no soot or gunk, then see these files: www.tegger.com/hondafaq/misc/11-111.pdf and www.tegger.com/hondafaq/misc/11-112.pdf They're from this site: http://www.hondahookup.com/manuals/ They are actually for the '98-'01 Integra, which has the B18C engine. You've probably got a B16A3, but the procedures and settings can't be a lot different. Have a poke around and see if the hardware looks the same. If so, perform the idle speed adjustment as specified and see if the problem goes away. If the base idle is far off enough, the car won't even idle at all until fully warm. And you'll probably get the MIL lighting up. Don't worry about that. It will go off again once the IAC and EVAP are reconnected. I find it best the disconnect the IAC and EVAP when the engine is cold. It gets pretty hot. Good luck. -- TeGGeR® The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
Re: 2000 Civic SiR low, rough idle
"JEHU" <dcoxNOSPAM@hfx.eastlink.ca> wrote in
news:6pzQd.52676$gA4.39752@edtnps89: > Man I should have looked closer! Your right TeGGer, so that means > that when it idles low it drops down to 500rpm or a little above that. If that's the case, you may simply need an idle speed adjustment. Make sure that throttle body has no soot or gunk, then see these files: www.tegger.com/hondafaq/misc/11-111.pdf and www.tegger.com/hondafaq/misc/11-112.pdf They're from this site: http://www.hondahookup.com/manuals/ They are actually for the '98-'01 Integra, which has the B18C engine. You've probably got a B16A3, but the procedures and settings can't be a lot different. Have a poke around and see if the hardware looks the same. If so, perform the idle speed adjustment as specified and see if the problem goes away. If the base idle is far off enough, the car won't even idle at all until fully warm. And you'll probably get the MIL lighting up. Don't worry about that. It will go off again once the IAC and EVAP are reconnected. I find it best the disconnect the IAC and EVAP when the engine is cold. It gets pretty hot. Good luck. -- TeGGeR® The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
Re: 2000 Civic SiR low, rough idle
"JEHU" <dcoxNOSPAM@hfx.eastlink.ca> wrote in
news:6pzQd.52676$gA4.39752@edtnps89: 2 Kings 9:20? :^) -- TeGGeR® The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
Re: 2000 Civic SiR low, rough idle
"JEHU" <dcoxNOSPAM@hfx.eastlink.ca> wrote in
news:6pzQd.52676$gA4.39752@edtnps89: 2 Kings 9:20? :^) -- TeGGeR® The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
Re: 2000 Civic SiR low, rough idle
Would I still need an idle speed adjustment if it didn't happen all the
time? I checked for Vac leaks... I didn't notice any cracks.. but I am not really sure how to really check for a vac leak. I probably should have mentioned this before but I have taken it into a honda dealership and on 3 occations they have told me 1st time. it is your intake system causing it 2nd time. we couldn't find anything 3rd time. we adjusted your base idle (basically found nothing again) thanks again! "TeGGer®" <tegger@istop.c0m> wrote in message news:Xns95FF65F3D3A4Dteggeratistop@207.14.113.17.. . > "JEHU" <dcoxNOSPAM@hfx.eastlink.ca> wrote in > news:6pzQd.52676$gA4.39752@edtnps89: > >> Man I should have looked closer! Your right TeGGer, so that means >> that when it idles low it drops down to 500rpm or a little above that. > > > If that's the case, you may simply need an idle speed adjustment. > > Make sure that throttle body has no soot or gunk, then see these files: > www.tegger.com/hondafaq/misc/11-111.pdf > and > www.tegger.com/hondafaq/misc/11-112.pdf > > They're from this site: > http://www.hondahookup.com/manuals/ > > They are actually for the '98-'01 Integra, which has the B18C engine. > You've probably got a B16A3, but the procedures and settings can't be a > lot > different. > > Have a poke around and see if the hardware looks the same. If so, perform > the idle speed adjustment as specified and see if the problem goes away. > > If the base idle is far off enough, the car won't even idle at all until > fully warm. And you'll probably get the MIL lighting up. Don't worry about > that. It will go off again once the IAC and EVAP are reconnected. > > I find it best the disconnect the IAC and EVAP when the engine is cold. It > gets pretty hot. > > > Good luck. > > -- > TeGGeR® > > The Unofficial Honda/Acura FAQ > www.tegger.com/hondafaq/ |
Re: 2000 Civic SiR low, rough idle
Would I still need an idle speed adjustment if it didn't happen all the
time? I checked for Vac leaks... I didn't notice any cracks.. but I am not really sure how to really check for a vac leak. I probably should have mentioned this before but I have taken it into a honda dealership and on 3 occations they have told me 1st time. it is your intake system causing it 2nd time. we couldn't find anything 3rd time. we adjusted your base idle (basically found nothing again) thanks again! "TeGGer®" <tegger@istop.c0m> wrote in message news:Xns95FF65F3D3A4Dteggeratistop@207.14.113.17.. . > "JEHU" <dcoxNOSPAM@hfx.eastlink.ca> wrote in > news:6pzQd.52676$gA4.39752@edtnps89: > >> Man I should have looked closer! Your right TeGGer, so that means >> that when it idles low it drops down to 500rpm or a little above that. > > > If that's the case, you may simply need an idle speed adjustment. > > Make sure that throttle body has no soot or gunk, then see these files: > www.tegger.com/hondafaq/misc/11-111.pdf > and > www.tegger.com/hondafaq/misc/11-112.pdf > > They're from this site: > http://www.hondahookup.com/manuals/ > > They are actually for the '98-'01 Integra, which has the B18C engine. > You've probably got a B16A3, but the procedures and settings can't be a > lot > different. > > Have a poke around and see if the hardware looks the same. If so, perform > the idle speed adjustment as specified and see if the problem goes away. > > If the base idle is far off enough, the car won't even idle at all until > fully warm. And you'll probably get the MIL lighting up. Don't worry about > that. It will go off again once the IAC and EVAP are reconnected. > > I find it best the disconnect the IAC and EVAP when the engine is cold. It > gets pretty hot. > > > Good luck. > > -- > TeGGeR® > > The Unofficial Honda/Acura FAQ > www.tegger.com/hondafaq/ |
Re: 2000 Civic SiR low, rough idle
On 2005-02-16 dcoxNOSPAM@hfx.eastlink.ca said: >Newsgroups: alt.autos.honda [snip] >I checked for Vac leaks... I didn't notice any cracks.. but I am >not really sure how to really check for a vac leak. I hunt them with a stethoscope with a slender tube for a probe. Tom Willmon near Mountainair, (mid) New Mexico, USA Net-Tamer V 1.12.0 - Registered |
Re: 2000 Civic SiR low, rough idle
On 2005-02-16 dcoxNOSPAM@hfx.eastlink.ca said: >Newsgroups: alt.autos.honda [snip] >I checked for Vac leaks... I didn't notice any cracks.. but I am >not really sure how to really check for a vac leak. I hunt them with a stethoscope with a slender tube for a probe. Tom Willmon near Mountainair, (mid) New Mexico, USA Net-Tamer V 1.12.0 - Registered |
Re: 2000 Civic SiR low, rough idle
twillmon@cybermesa.net wrote in news:cv0msv$mf9$1@reader2.nmix.net:
> > > On 2005-02-16 dcoxNOSPAM@hfx.eastlink.ca said: > >Newsgroups: alt.autos.honda > [snip] > >I checked for Vac leaks... I didn't notice any cracks.. but I am > >not really sure how to really check for a vac leak. > > > > I hunt them with a stethoscope with a slender tube for a probe. > You can also use a propane torch (unlit). Hold it near the suspected leak then turn the gas on. Idle will change. -- TeGGeR® The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
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