2004 Audi A6 Quattro Q&A
2004 Audi A6 Quattro Question: Oxygen sensor
There are several oxygen sensors, but either way, go to http://www.alldatadiy.com/ or http://www.bentleypublishers.com/ and get a repair manual. This can save you a lot of time and money, and it will help you with the next repair you decide to do. - Bret Bodas
this job is no picnic! a special socket is needed and depending on which sensor, maybe a box of band-aids. unless you can replace easy stuff like brakes,oil,etc i'd keep paying for replacement of sensor as the prefered option. no offense intended. - some guy
The engine will start and run fine when it is cold but after it reaches operating temp it will idle down to 500 rpm and start dipping below that then die when stopped at redlight. Then most of the ...
Vacuum leaks, oxygen sensor failure, and catalytic converter efficiency faults can cause the Check Engine Light to illuminate.
...out. Check engine light comes on and off, but everything has been checked out we replaced the Oxygen Sensor twice. Any help would be appreciated.
I failed emmissions. Diagnostic report says" Catalyst system efficiency below threshold bank. Last year one of the oxygen sensors was removed when my engine light came on. Is the engine light now ...
i had autzone reset the codes and it hasnt happened anymore