/o/ I recently got a check engine light on my 2002 audi and

>>16130957
find a way to defeat it so the check engine light goes off. sometimes you can just wire in a resistor where the sensor is and the cel can be cleared. then if something bad actually happens you know.

sure just dont drive with the windows closed... theres a reason exhaust leak is on most state's safety inspection.

There are write ups on how to fix it, it's a little carburetor looking thing behind the engine. I wrapped mine in heat tape and it worked as long as I had it

>>16130979
This is for the air injection not the exhaust. How would they even make an OBD2 monitor for exhaust leaks, have 20 carbon monoxide sensors along the system?

>>16130997
is it the combi valve? i found it but theres nothing visible wrong with it, other than the hose coming out of it was a little loose which i tightened yesterday but the CEL is still on

>>16131116
Best way to find the leak is drive you car underwater at a boat ramp, do a cold start so the air injection runs, then look for bubbles

>>16131116
It's the internals, they get dirty and causes it to malfunction. Does it make a high pitched whining noise on start up?

>>16130957
>check engine light
>audi

it means nothing.
Keep driving until something real actually breaks

>>16131284
YES, it did it HOWEVER when the CEL came out it STOPPED making that high pitched noise on cold start ups