Hey guys as you can tell im new to the Audi scene, im looking to buy this 97 A4 1.8T it has 54k miles and its super clean, the only thing is that when im decelarting the RPMs drop to the point of stalling, Has anyone had this similar issue ? and if so what was the cause ? I was thinking it might be the TPS sensor or Idle speed controller.

Any help with this will be appreciated.

 

It could be your idle speed controller but i'm gonna say you have a high carbon build up in your intake manifold and your egr.

go to the dealer ask for a decarb and cleanign of your throttle body, egr and intake man

 

hmmm, throttle closeing completely? when ur off the gas.....