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Check engine light on...again...ECM issue.
Hello,
I have a '99 Accord Coupe, 4cyl that recently was in the shop for a bad Bypass Colenoid Valve (BCV). The check engine light went off and returned again three days later. The mechanic told me if the light returns that it is most likely going to be the ECM, which will be more costly than the BCV. My question is this...how long can I run my car with a bad ECM? I am currently low in funds and can not afford this replacement especially since I did my timing belt package a couple weeks ago. Thanks! Jessica |
Re: Check engine light on...again...ECM issue.
"Jess" <jlhick20@yahoo.com> wrote in
news:1155770939.408497.117170@p79g2000cwp.googlegr oups.com: > Hello, > > I have a '99 Accord Coupe, 4cyl that recently was in the shop for a bad > Bypass Colenoid Valve (BCV). The check engine light went off and > returned again three days later. Sounds like a simple EVAP problem. What was the actual alphanumeric code? > > The mechanic told me if the light returns that it is most likely going > to be the ECM, which will be more costly than the BCV. > > My question is this...how long can I run my car with a bad ECM? I am > currently low in funds and can not afford this replacement especially > since I did my timing belt package a couple weeks ago. > First off, other than the Check Engine light, what else is wrong with the car's behavior? Is it starting and running fine? Your mechanic may be feeding you a line here. "Failed ECM" is a common diagnosis for mechanics who are stumped by a problem. Honda ECMs are exeedingly reliable and almost never go bad unless flooded or subject to electrical trauma. How to check your ECM: 1) Insert key in ignition 2) Turn key to "II" (NOT to Start [III]) and leave it there 3) As key is turned to II, the Check Engine light will turn on 4) Two seconds later, CEL will turn off. If the CEL does not come on, comes on and remains on for good, or stores an error code that does not exist, then it is bad. Otherwise, it is not bad. -- TeGGeR® The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
Re: Check engine light on...again...ECM issue.
"Jess" <jlhick20@yahoo.com> wrote in
news:1155770939.408497.117170@p79g2000cwp.googlegr oups.com: > Hello, > > I have a '99 Accord Coupe, 4cyl that recently was in the shop for a bad > Bypass Colenoid Valve (BCV). The check engine light went off and > returned again three days later. Sounds like a simple EVAP problem. What was the actual alphanumeric code? > > The mechanic told me if the light returns that it is most likely going > to be the ECM, which will be more costly than the BCV. > > My question is this...how long can I run my car with a bad ECM? I am > currently low in funds and can not afford this replacement especially > since I did my timing belt package a couple weeks ago. > First off, other than the Check Engine light, what else is wrong with the car's behavior? Is it starting and running fine? Your mechanic may be feeding you a line here. "Failed ECM" is a common diagnosis for mechanics who are stumped by a problem. Honda ECMs are exeedingly reliable and almost never go bad unless flooded or subject to electrical trauma. How to check your ECM: 1) Insert key in ignition 2) Turn key to "II" (NOT to Start [III]) and leave it there 3) As key is turned to II, the Check Engine light will turn on 4) Two seconds later, CEL will turn off. If the CEL does not come on, comes on and remains on for good, or stores an error code that does not exist, then it is bad. Otherwise, it is not bad. -- TeGGeR® The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
Re: Check engine light on...again...ECM issue.
"Jess" <jlhick20@yahoo.com> wrote in
news:1155770939.408497.117170@p79g2000cwp.googlegr oups.com: > Hello, > > I have a '99 Accord Coupe, 4cyl that recently was in the shop for a bad > Bypass Colenoid Valve (BCV). The check engine light went off and > returned again three days later. Sounds like a simple EVAP problem. What was the actual alphanumeric code? > > The mechanic told me if the light returns that it is most likely going > to be the ECM, which will be more costly than the BCV. > > My question is this...how long can I run my car with a bad ECM? I am > currently low in funds and can not afford this replacement especially > since I did my timing belt package a couple weeks ago. > First off, other than the Check Engine light, what else is wrong with the car's behavior? Is it starting and running fine? Your mechanic may be feeding you a line here. "Failed ECM" is a common diagnosis for mechanics who are stumped by a problem. Honda ECMs are exeedingly reliable and almost never go bad unless flooded or subject to electrical trauma. How to check your ECM: 1) Insert key in ignition 2) Turn key to "II" (NOT to Start [III]) and leave it there 3) As key is turned to II, the Check Engine light will turn on 4) Two seconds later, CEL will turn off. If the CEL does not come on, comes on and remains on for good, or stores an error code that does not exist, then it is bad. Otherwise, it is not bad. -- TeGGeR® The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
Re: Check engine light on...again...ECM issue.
"TeGGeR®" <tegger@tegger.c0m> wrote in message
news:Xns9821C99903E3Ategger@207.14.116.130... > > First off, other than the Check Engine light, what else is wrong with the > car's behavior? Is it starting and running fine? > > Your mechanic may be feeding you a line here. "Failed ECM" is a common > diagnosis for mechanics who are stumped by a problem. > > Honda ECMs are exeedingly reliable and almost never go bad unless flooded > or subject to electrical trauma. > I agree with that in spades! In my experience, at least 90% of ECM condemnations (other than those in flooded cars) are mistaken. If for some odd reason you do need to replace the ECU because the engine is running badly or drinking gas like crazy, wrecking yards are the best source. You should be able to get a used one with a 30 day guarantee (if it works 30 days, it should work forever) for less than $100 US. Mike |
Re: Check engine light on...again...ECM issue.
"TeGGeR®" <tegger@tegger.c0m> wrote in message
news:Xns9821C99903E3Ategger@207.14.116.130... > > First off, other than the Check Engine light, what else is wrong with the > car's behavior? Is it starting and running fine? > > Your mechanic may be feeding you a line here. "Failed ECM" is a common > diagnosis for mechanics who are stumped by a problem. > > Honda ECMs are exeedingly reliable and almost never go bad unless flooded > or subject to electrical trauma. > I agree with that in spades! In my experience, at least 90% of ECM condemnations (other than those in flooded cars) are mistaken. If for some odd reason you do need to replace the ECU because the engine is running badly or drinking gas like crazy, wrecking yards are the best source. You should be able to get a used one with a 30 day guarantee (if it works 30 days, it should work forever) for less than $100 US. Mike |
Re: Check engine light on...again...ECM issue.
"TeGGeR®" <tegger@tegger.c0m> wrote in message
news:Xns9821C99903E3Ategger@207.14.116.130... > > First off, other than the Check Engine light, what else is wrong with the > car's behavior? Is it starting and running fine? > > Your mechanic may be feeding you a line here. "Failed ECM" is a common > diagnosis for mechanics who are stumped by a problem. > > Honda ECMs are exeedingly reliable and almost never go bad unless flooded > or subject to electrical trauma. > I agree with that in spades! In my experience, at least 90% of ECM condemnations (other than those in flooded cars) are mistaken. If for some odd reason you do need to replace the ECU because the engine is running badly or drinking gas like crazy, wrecking yards are the best source. You should be able to get a used one with a 30 day guarantee (if it works 30 days, it should work forever) for less than $100 US. Mike |
Re: Check engine light on...again...ECM issue.
Greetings,
The car is running fine. There are no weird noises, sounds, or problems with starting or running the engine. I just came back from a 6 hour trip (when the CEL came back on) and it was fine for the entire ride. I have driven it around town for the past couple days and it has been perfect. Today: I turned the key to "II" and the CEL came on, turned off (for probably one second), and then came back on for good. When I went to the auto parts store yesterday for a free diagnostic test...the code read: "P1457 Manufacturer Contrl. Auxiliary emission Controls" The mechanic gave me a print-out of the initial CEL problem from www.alldatapro.com when the bypass solenoid valve was repaired. The code for the mechanic also said P1457. On the print out it says: Failed part: EVAP Bypass Solenoid Valve ECM/PCM Then the print-out goes on to tell the repair procedure. Anyways, he repaired the valve and the light turned off for a few days and now it's back with the same error code. Since this code (P1457) has come up twice, does it mean it's the ECM? Thanks! Jess TeGGeR® wrote: > "Jess" <jlhick20@yahoo.com> wrote in > news:1155770939.408497.117170@p79g2000cwp.googlegr oups.com: > > > Hello, > > > > I have a '99 Accord Coupe, 4cyl that recently was in the shop for a bad > > Bypass Colenoid Valve (BCV). The check engine light went off and > > returned again three days later. > > > > Sounds like a simple EVAP problem. What was the actual alphanumeric code? > > > > > > The mechanic told me if the light returns that it is most likely going > > to be the ECM, which will be more costly than the BCV. > > > > My question is this...how long can I run my car with a bad ECM? I am > > currently low in funds and can not afford this replacement especially > > since I did my timing belt package a couple weeks ago. > > > > > > First off, other than the Check Engine light, what else is wrong with the > car's behavior? Is it starting and running fine? > > Your mechanic may be feeding you a line here. "Failed ECM" is a common > diagnosis for mechanics who are stumped by a problem. > > Honda ECMs are exeedingly reliable and almost never go bad unless flooded > or subject to electrical trauma. > > How to check your ECM: > 1) Insert key in ignition > 2) Turn key to "II" (NOT to Start [III]) and leave it there > 3) As key is turned to II, the Check Engine light will turn on > 4) Two seconds later, CEL will turn off. > > If the CEL does not come on, comes on and remains on for good, or stores an > error code that does not exist, then it is bad. Otherwise, it is not bad. > > > -- > TeGGeR® > > The Unofficial Honda/Acura FAQ > www.tegger.com/hondafaq/ |
Re: Check engine light on...again...ECM issue.
Greetings,
The car is running fine. There are no weird noises, sounds, or problems with starting or running the engine. I just came back from a 6 hour trip (when the CEL came back on) and it was fine for the entire ride. I have driven it around town for the past couple days and it has been perfect. Today: I turned the key to "II" and the CEL came on, turned off (for probably one second), and then came back on for good. When I went to the auto parts store yesterday for a free diagnostic test...the code read: "P1457 Manufacturer Contrl. Auxiliary emission Controls" The mechanic gave me a print-out of the initial CEL problem from www.alldatapro.com when the bypass solenoid valve was repaired. The code for the mechanic also said P1457. On the print out it says: Failed part: EVAP Bypass Solenoid Valve ECM/PCM Then the print-out goes on to tell the repair procedure. Anyways, he repaired the valve and the light turned off for a few days and now it's back with the same error code. Since this code (P1457) has come up twice, does it mean it's the ECM? Thanks! Jess TeGGeR® wrote: > "Jess" <jlhick20@yahoo.com> wrote in > news:1155770939.408497.117170@p79g2000cwp.googlegr oups.com: > > > Hello, > > > > I have a '99 Accord Coupe, 4cyl that recently was in the shop for a bad > > Bypass Colenoid Valve (BCV). The check engine light went off and > > returned again three days later. > > > > Sounds like a simple EVAP problem. What was the actual alphanumeric code? > > > > > > The mechanic told me if the light returns that it is most likely going > > to be the ECM, which will be more costly than the BCV. > > > > My question is this...how long can I run my car with a bad ECM? I am > > currently low in funds and can not afford this replacement especially > > since I did my timing belt package a couple weeks ago. > > > > > > First off, other than the Check Engine light, what else is wrong with the > car's behavior? Is it starting and running fine? > > Your mechanic may be feeding you a line here. "Failed ECM" is a common > diagnosis for mechanics who are stumped by a problem. > > Honda ECMs are exeedingly reliable and almost never go bad unless flooded > or subject to electrical trauma. > > How to check your ECM: > 1) Insert key in ignition > 2) Turn key to "II" (NOT to Start [III]) and leave it there > 3) As key is turned to II, the Check Engine light will turn on > 4) Two seconds later, CEL will turn off. > > If the CEL does not come on, comes on and remains on for good, or stores an > error code that does not exist, then it is bad. Otherwise, it is not bad. > > > -- > TeGGeR® > > The Unofficial Honda/Acura FAQ > www.tegger.com/hondafaq/ |
Re: Check engine light on...again...ECM issue.
Greetings,
The car is running fine. There are no weird noises, sounds, or problems with starting or running the engine. I just came back from a 6 hour trip (when the CEL came back on) and it was fine for the entire ride. I have driven it around town for the past couple days and it has been perfect. Today: I turned the key to "II" and the CEL came on, turned off (for probably one second), and then came back on for good. When I went to the auto parts store yesterday for a free diagnostic test...the code read: "P1457 Manufacturer Contrl. Auxiliary emission Controls" The mechanic gave me a print-out of the initial CEL problem from www.alldatapro.com when the bypass solenoid valve was repaired. The code for the mechanic also said P1457. On the print out it says: Failed part: EVAP Bypass Solenoid Valve ECM/PCM Then the print-out goes on to tell the repair procedure. Anyways, he repaired the valve and the light turned off for a few days and now it's back with the same error code. Since this code (P1457) has come up twice, does it mean it's the ECM? Thanks! Jess TeGGeR® wrote: > "Jess" <jlhick20@yahoo.com> wrote in > news:1155770939.408497.117170@p79g2000cwp.googlegr oups.com: > > > Hello, > > > > I have a '99 Accord Coupe, 4cyl that recently was in the shop for a bad > > Bypass Colenoid Valve (BCV). The check engine light went off and > > returned again three days later. > > > > Sounds like a simple EVAP problem. What was the actual alphanumeric code? > > > > > > The mechanic told me if the light returns that it is most likely going > > to be the ECM, which will be more costly than the BCV. > > > > My question is this...how long can I run my car with a bad ECM? I am > > currently low in funds and can not afford this replacement especially > > since I did my timing belt package a couple weeks ago. > > > > > > First off, other than the Check Engine light, what else is wrong with the > car's behavior? Is it starting and running fine? > > Your mechanic may be feeding you a line here. "Failed ECM" is a common > diagnosis for mechanics who are stumped by a problem. > > Honda ECMs are exeedingly reliable and almost never go bad unless flooded > or subject to electrical trauma. > > How to check your ECM: > 1) Insert key in ignition > 2) Turn key to "II" (NOT to Start [III]) and leave it there > 3) As key is turned to II, the Check Engine light will turn on > 4) Two seconds later, CEL will turn off. > > If the CEL does not come on, comes on and remains on for good, or stores an > error code that does not exist, then it is bad. Otherwise, it is not bad. > > > -- > TeGGeR® > > The Unofficial Honda/Acura FAQ > www.tegger.com/hondafaq/ |
Re: Check engine light on...again...ECM issue.
"Jess" <jlhick20@yahoo.com> wrote in
news:1155842177.349872.195810@h48g2000cwc.googlegr oups.com: > Greetings, > > The car is running fine. There are no weird noises, sounds, or > problems with starting or running the engine. I just came back from a > 6 hour trip (when the CEL came back on) and it was fine for the entire > ride. I have driven it around town for the past couple days and it > has been perfect. > > Today: I turned the key to "II" and the CEL came on, turned off (for > probably one second), and then came back on for good. > > When I went to the auto parts store yesterday for a free diagnostic > test...the code read: > > "P1457 > Manufacturer Contrl. > Auxiliary emission > Controls" Incorrect. Correct: Evaporative Emissions (EVAP) Control System Leakage (EVAP Canister System) This is as opposed to the fuel tank side of the system, which is error P1456. > > The mechanic gave me a print-out of the initial CEL problem from > www.alldatapro.com when the bypass solenoid valve was repaired. The > code for the mechanic also said P1457. On the print out it says: > > Failed part: EVAP Bypass Solenoid Valve > ECM/PCM Maybe, maybe not. He has no way of knowing. > > Then the print-out goes on to tell the repair procedure. Anyways, he > repaired the valve and the light turned off for a few days and now > it's back with the same error code. Since this code (P1457) has come > up twice, does it mean it's the ECM? No, it means he didn't diagnose the problem properly. The code just means an air leak in the sealed evap canister; it does NOT necessarily mean the bypass solenoid is bad. He needs to close all the solenoids, then apply vacuum to the tank and see if it holds vacuum or not. Trust me, the ECM is NOT the problem here. Maybe you need a better mechanic. -- TeGGeR® The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
Re: Check engine light on...again...ECM issue.
"Jess" <jlhick20@yahoo.com> wrote in
news:1155842177.349872.195810@h48g2000cwc.googlegr oups.com: > Greetings, > > The car is running fine. There are no weird noises, sounds, or > problems with starting or running the engine. I just came back from a > 6 hour trip (when the CEL came back on) and it was fine for the entire > ride. I have driven it around town for the past couple days and it > has been perfect. > > Today: I turned the key to "II" and the CEL came on, turned off (for > probably one second), and then came back on for good. > > When I went to the auto parts store yesterday for a free diagnostic > test...the code read: > > "P1457 > Manufacturer Contrl. > Auxiliary emission > Controls" Incorrect. Correct: Evaporative Emissions (EVAP) Control System Leakage (EVAP Canister System) This is as opposed to the fuel tank side of the system, which is error P1456. > > The mechanic gave me a print-out of the initial CEL problem from > www.alldatapro.com when the bypass solenoid valve was repaired. The > code for the mechanic also said P1457. On the print out it says: > > Failed part: EVAP Bypass Solenoid Valve > ECM/PCM Maybe, maybe not. He has no way of knowing. > > Then the print-out goes on to tell the repair procedure. Anyways, he > repaired the valve and the light turned off for a few days and now > it's back with the same error code. Since this code (P1457) has come > up twice, does it mean it's the ECM? No, it means he didn't diagnose the problem properly. The code just means an air leak in the sealed evap canister; it does NOT necessarily mean the bypass solenoid is bad. He needs to close all the solenoids, then apply vacuum to the tank and see if it holds vacuum or not. Trust me, the ECM is NOT the problem here. Maybe you need a better mechanic. -- TeGGeR® The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
Re: Check engine light on...again...ECM issue.
"Jess" <jlhick20@yahoo.com> wrote in
news:1155842177.349872.195810@h48g2000cwc.googlegr oups.com: > Greetings, > > The car is running fine. There are no weird noises, sounds, or > problems with starting or running the engine. I just came back from a > 6 hour trip (when the CEL came back on) and it was fine for the entire > ride. I have driven it around town for the past couple days and it > has been perfect. > > Today: I turned the key to "II" and the CEL came on, turned off (for > probably one second), and then came back on for good. > > When I went to the auto parts store yesterday for a free diagnostic > test...the code read: > > "P1457 > Manufacturer Contrl. > Auxiliary emission > Controls" Incorrect. Correct: Evaporative Emissions (EVAP) Control System Leakage (EVAP Canister System) This is as opposed to the fuel tank side of the system, which is error P1456. > > The mechanic gave me a print-out of the initial CEL problem from > www.alldatapro.com when the bypass solenoid valve was repaired. The > code for the mechanic also said P1457. On the print out it says: > > Failed part: EVAP Bypass Solenoid Valve > ECM/PCM Maybe, maybe not. He has no way of knowing. > > Then the print-out goes on to tell the repair procedure. Anyways, he > repaired the valve and the light turned off for a few days and now > it's back with the same error code. Since this code (P1457) has come > up twice, does it mean it's the ECM? No, it means he didn't diagnose the problem properly. The code just means an air leak in the sealed evap canister; it does NOT necessarily mean the bypass solenoid is bad. He needs to close all the solenoids, then apply vacuum to the tank and see if it holds vacuum or not. Trust me, the ECM is NOT the problem here. Maybe you need a better mechanic. -- TeGGeR® The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
Re: Check engine light on...again...ECM issue.
"TeGGeR®" <tegger@tegger.c0m> wrote in
news:Xns9822AF42020DDtegger@207.14.116.130: > > He needs to close all the solenoids, then apply vacuum to the tank and > see if it holds vacuum or not. Actually, it's a bit more complex than that, but a good shop manual will have the complete testing procedure for the evap system. -- TeGGeR® The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
Re: Check engine light on...again...ECM issue.
"TeGGeR®" <tegger@tegger.c0m> wrote in
news:Xns9822AF42020DDtegger@207.14.116.130: > > He needs to close all the solenoids, then apply vacuum to the tank and > see if it holds vacuum or not. Actually, it's a bit more complex than that, but a good shop manual will have the complete testing procedure for the evap system. -- TeGGeR® The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
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