Rough idle when car is warm

[awd2lturbo]

My stock 95 TSi is idling weird lately. When it's started from a warm start, usually between half to an hour after the car has been driven, it would idle roughly, but not died out. The rpm would flux between 400-1000. Hitting the gas peddle at around 2000 rpm for about 5 seconds gets rid of the problem and the car would be fine after that. It doesn't have the problem during cold start or sitting in traffic or at a red light. It just does it during a warm start described above. New NGK BPR6ES plugs, stock wires, water pump, factory timing belt and all the other belts were replaced 7 months ago. Car has been fine til recently. Anyone know what's wrong? Car only has 57k miles on it.

 

[mopar4Life]

had a similar problem on my 92 and tested my tps and it was bad so i replaced it and idles great now

 

[Flyin-Low]

It is probably your ISC idle speed control - But if this parts bad then usually the Check Engine Light will come on. You can get a rebuilt one at corbotech.com.

 

[Flyin-Low]

It is probably your ISC idle speed control - But if this parts bad then usually the Check Engine Light will come on.