The complete automotive resource for buyers, sellers, and owners like you.
Car, Truck and SUV Forums at Roadfly
+ Bentley Forums
+ BMW Forums
+ Cadillac Forums
+ Chevrolet Forums
+ Ferrari Forums
+ Jaguar Forums
+ Lamborghini Forums
+ Lotus Forums
+ Mercedes-Benz Forums
+ Maserati Forums
+ MINI Forums
+ Porsche Forums
+ General Discussion
+ Marketplace Forums
Help with OBD Fault Code 1222 (archive)
[ Follow Ups ] [ 3-series (E36) Message Board ] [ Msg. Board FAQ ]
Posted by Ed on March 26, 2000 at 21:51:56:

My check engine light comes on....but when I back off on the gas pedal it goes off.

I am getting a single OBD fault code of 1222....which indicates that the O2 sensor is seeing emission limits either to lean/rich. BTW, the fault code for a faulty O2 sensor is 1221....and I have just recently replaced it. The OBD is showing no other fault codes (such as a problem with the DME, air mass meter, fuel injectors etc.).

So whatever is causing the to rich/lean mixture fault is outside of what the OBD monitors. 99.9% the car seems to drive normally....but once or twice during warm up the engines flattens out (no increase in rpm's /power with increase in throttle).

Any thoughts?

Follow Ups:


[ Follow Ups ] [ 3-series (E36) Message Board ] [ Msg. Board FAQ ]
Questions, comments, or problems, please visit the Roadfly help desk.
Roadfly.com Logo © 1997 - 2009 Jump Internet Inc. All rights reserved.