audi 80q idle probs

  #1  
Old 11-20-2006, 02:10 AM
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Join Date: Nov 2006
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Default 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
 
  #2  
Old 11-20-2006, 02:12 AM
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Default RE: audi 80q idle probs

I do know the o2 sensor is unhooked not sure if that would cause problems
 
  #3  
Old 11-20-2006, 06:20 PM
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Default RE: audi 80q idle probs

anybody have any ideas for me
 
  #4  
Old 11-20-2006, 11:38 PM
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Location: Brooklyn, NY
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Default RE: audi 80q idle probs

hmm, maybe the injector control plate is bad, or its badly tuned.
or ignition is wrong.
 
  #5  
Old 11-21-2006, 12:24 AM
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Default 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.
 
  #6  
Old 11-21-2006, 12:33 AM
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Location: Black Mountain, NC
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Default 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
 
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