1994 Acura Integra 4 cyl Front Wheel Drive Manual 180000 miles
I have a 1994 Acura Integra with 180,000 miles that I bought recently. It has a GS-R (VTEC) engine from a 1997 Integra in it, as well as some after-market parts installed (headers, cat-back exhaust, cold air intake, Apexi V-AFC II).
My problem is that I can't get the car to pass emissions. The car is producing 6 times the legal limit of CO, but the other tests are OK. The mechanics where I got it tested tried to work on it, but they got nowhere and told me to ask a Honda professional. They also said the high CO is because the car is running rich. The car does idle funny in the morning, but after driving it a block everything is OK.
I disabled the V-AFC before going to emissions testing the second time, and still failed. (A V-AFC is an aftermarket computer that fits in between the engine sensors and the ECU. It lies to the ECU and can be programmed to adjust the fuel/air mixture)
The emissions mechanics did replace the water temp. Sensor as well as installed a new cat and O2 sensor (there was a testpipe and an O2 sensor before).
I should also mention that sometimes the check engine light goes on when I start driving, but if I park and shut the engine off for a few minutes the light goes away. This only happened 3 times in the past month.
Any idea what to look at first? Tomorrow a friend of mine is coming to look at it but I would like to have more input. Thank you in advance.
have the same problem?
Friday, August 22nd, 2008 AT 10:01 PM