View Full Version : 02 Too Rich? Wierd Code!!

12-15-2010, 04:08 PM
P1112. Audi: Oxygen Control (Bank 1) System too rich.

Information on this code is no where to be found! Ive looked on Wikiross, AZ, etc but I havent found anything regarding this. Anyone know some info on this? I have lately noticed that my car smells a little more.

12-15-2010, 05:19 PM
I'd look at fuel trims, and log the AFR to start.

Bentley says possible causes:
- evap purge valve
- fuel injectors
- fuel pressure
- fuel pump
- intake leaks
- either o2 sensor has failed

So those causes can basically translate to:
- evap purge valve stuck open
- leaky fuel injectors
- fuel pressure too high
- not really sure how the fuel pump can cause this?
- boost leak
- o2 sensors

12-15-2010, 05:31 PM
Thank you sir, Ill do some logs! I finally have a Vagcom