Questions & Answers for: Audi 100 o2 sensor

o2 sensor. the car runs fine except at idle it runs at 500 rpm for a few seconds then goes up to 1200 rpm then back again all the time. The engine is running very rich and smokes a little bit. What is

...O2 sensor?s input to balance the fuel mixture, leaning the mixture when the sensor reads rich and enriching the mixture when the sensor reads lean. I pulled this off a web site for you, I didn't know ...

...converter have your car put on a diagnostic computer to see if your getting any trouble codes your o2 sensors might need to be ...

o2 sensor How to check to see if it is good? Unless check engine light does not come up, there is no need to worry about O2 sensor. To check O2 sensor check your ride for error codes. The error code ...