audi 80q idle probs
 

My car will start up and run fine for a few minutes and then start running rough and rich. I am thinking it may be a bad CTS, and my temp gauge will not move only sometimes by a hair and yes i replaced the thermostat, and also once the car is warm and you shut it off you need to wait awhile before it restarts and I am thinking that is from a bad check valve. The timing is correct and all ignition items are ok I just replaced the headgasket. Please help it runs great till it warms up. Anyone have any tips. Oh yeh its a 88 80q

RE: audi 80q idle probs
 

I do know the o2 sensor is unhooked not sure if that would cause problems

RE: audi 80q idle probs
 

anybody have any ideas for me

RE: audi 80q idle probs
 

hmm, maybe the injector control plate is bad, or its badly tuned.
or ignition is wrong.

RE: audi 80q idle probs
 

not sure I have played with the distributor a bit but never seems right and the timing are lined up correctly. The injector control plate is that in the air box under the lines.

RE: audi 80q idle probs
 

make sure that all the temp sensors are working ... there are several seperate ones .... they contribute to idle and air/fuel mixture and it would be a good idea to hook up the O2 sensor so you can have proper air/fuel mixture when car is warm and under load