|
Re: Bypass solenoid valve
Thank you so much for your help! I really appreciate it.
I checked out your website and was fascinated with all the FAQs! I, too, have a buzz at certain RPMs (typically when I'm at a low speed in 2nd or 3rd) in the rear of my car. I wonder if I have the Honda "A-pipe" rattle? My friend said something about Honda offering a "buzz" kit to fix the problem but I never looked into it because it didn't seem all that problematic. Thanks again! Jessica TeGGeR® wrote: > "Jess" <jlhick20@yahoo.com> wrote in > news:1155127138.568581.274550@b28g2000cwb.googlegr oups.com: > > > Greetings, > > > > Thank you for the thorough response. By the way, It's a '99 Accord > > Coupe, 4cyl. I didn't realize that this part would perform different > > functions in different cars, which is why I neglected to provide the > > model and year. > > > Performs the same function in all vehicles with that type of EVAP. But... > > It's *always* a good idea when posting questions to state year, model, trim > level, transmission and presence or absence of A/C. Engine controls differ > given the above. This way some of us can look to see if there are known > problems, gotchas, or TSBs involving your ride. > > > > > > How often does the EVAP system do a self test? > > > > Don't know for sure, but I think it's at least once per trip. > > > > > > > When you say, "it needs to be able to apply vacuum to the tank..." Are > > you talking about the vapor purge tank or gas tank? I would assume > > the gas tank since it overrides the vacuum valve, which prevents > > access to it. > > > Correct. > > > > > > Also...the vapor purge tank. How are there "extra" vapors where they > > need their own tank? > > > There aren't any "extra" vapors. All fuel tank vapors end up in the > charcoal canister that is called the "purge tank". This is the entire > purpose of the EVAP system. > > It's just that when the EVAP system attempts to drain the purge tank of its > existing vapors, it makes no sense to allow new vapors into the purge tank > at the same time. That would be a bit like pulling the plug on your > bathroom sink while turning the tap on at the same time. > > > -- > TeGGeR® > > The Unofficial Honda/Acura FAQ > www.tegger.com/hondafaq/ |
Re: Bypass solenoid valve
">> >> How often does the EVAP system do a self test? > > > > Don't know for sure, but I think it's at least once per trip. > > > Don't know specifically, but most cars have restrictions on when the test is to be attempted. Quantity of fuel between X and X; Temperature between X and X and engine cold or the first start in the day. Often when dealing with the evap system you may have a driver that never meets the requirements so the test never gets performed. -- Stephen W. Hansen ASE Certified Master Automobile Technician ASE Automobile Advanced Engine Performance ASE Undercar Specialist http://autorepair.about.com/cs/troub...l_obd_main.htm http://www.troublecodes.net/technical/ http://www.familycar.com/Alignment.htm |
Re: Bypass solenoid valve
">> >> How often does the EVAP system do a self test? > > > > Don't know for sure, but I think it's at least once per trip. > > > Don't know specifically, but most cars have restrictions on when the test is to be attempted. Quantity of fuel between X and X; Temperature between X and X and engine cold or the first start in the day. Often when dealing with the evap system you may have a driver that never meets the requirements so the test never gets performed. -- Stephen W. Hansen ASE Certified Master Automobile Technician ASE Automobile Advanced Engine Performance ASE Undercar Specialist http://autorepair.about.com/cs/troub...l_obd_main.htm http://www.troublecodes.net/technical/ http://www.familycar.com/Alignment.htm |
Re: Bypass solenoid valve
">> >> How often does the EVAP system do a self test? > > > > Don't know for sure, but I think it's at least once per trip. > > > Don't know specifically, but most cars have restrictions on when the test is to be attempted. Quantity of fuel between X and X; Temperature between X and X and engine cold or the first start in the day. Often when dealing with the evap system you may have a driver that never meets the requirements so the test never gets performed. -- Stephen W. Hansen ASE Certified Master Automobile Technician ASE Automobile Advanced Engine Performance ASE Undercar Specialist http://autorepair.about.com/cs/troub...l_obd_main.htm http://www.troublecodes.net/technical/ http://www.familycar.com/Alignment.htm |
Re: Bypass solenoid valve
"Stephen H" <hansensw@hotmail.com> wrote in
news:3%mDg.598561$Fs1.236328@bgtnsc05-news.ops.worldnet.att.net: > > ">> >>> How often does the EVAP system do a self test? >> >> >> >> Don't know for sure, but I think it's at least once per trip. >> >> >> > Don't know specifically, but most cars have restrictions on when the > test is to be attempted. Quantity of fuel between X and X; Temperature > between X and X and engine cold or the first start in the day. Often > when dealing with the evap system you may have a driver that never > meets the requirements so the test never gets performed. > I was wondering about that. Obviously the test would have to be performed under certain conditions, and if those condtions were never met, the test would never be performed. I guess another example would be the cat efficiency test (P0420 error). -- TeGGeR® The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
Re: Bypass solenoid valve
"Stephen H" <hansensw@hotmail.com> wrote in
news:3%mDg.598561$Fs1.236328@bgtnsc05-news.ops.worldnet.att.net: > > ">> >>> How often does the EVAP system do a self test? >> >> >> >> Don't know for sure, but I think it's at least once per trip. >> >> >> > Don't know specifically, but most cars have restrictions on when the > test is to be attempted. Quantity of fuel between X and X; Temperature > between X and X and engine cold or the first start in the day. Often > when dealing with the evap system you may have a driver that never > meets the requirements so the test never gets performed. > I was wondering about that. Obviously the test would have to be performed under certain conditions, and if those condtions were never met, the test would never be performed. I guess another example would be the cat efficiency test (P0420 error). -- TeGGeR® The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
Re: Bypass solenoid valve
"Stephen H" <hansensw@hotmail.com> wrote in
news:3%mDg.598561$Fs1.236328@bgtnsc05-news.ops.worldnet.att.net: > > ">> >>> How often does the EVAP system do a self test? >> >> >> >> Don't know for sure, but I think it's at least once per trip. >> >> >> > Don't know specifically, but most cars have restrictions on when the > test is to be attempted. Quantity of fuel between X and X; Temperature > between X and X and engine cold or the first start in the day. Often > when dealing with the evap system you may have a driver that never > meets the requirements so the test never gets performed. > I was wondering about that. Obviously the test would have to be performed under certain conditions, and if those condtions were never met, the test would never be performed. I guess another example would be the cat efficiency test (P0420 error). -- TeGGeR® The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
| All times are GMT -4. The time now is 01:52 AM. |
© 2024 MH Sub I, LLC dba Internet Brands