I have a 87 Camaro 305 TPI 5speed that I'm having an issue with it stumbling and cutting off when you go to come to a stop and push the clutch in.
It only does this after about 15-20 mins of driving but will start right back up and run fine for about the same amount of time and then it will happen again.
The car is almost all original. The TPS has been replaced and it has had the injectors replaced at some point with Lucas brand injectors. It does have a cat back exhaust installed and the cat has been removed. The ECM has been re tuned with the updated stock tables and lower fan temps but other than that its all original.
I've search thru the forums but haven't found any threads that speak to this problem. any help or thoughts would be appreciated.

 

Any code 24 ?

 

Thanks, there is no service engine soon light or any stored codes in the ECM. I did use a scanner on it and all seemed normal. I didnt do this while driving it though.

 

Anyone have any ideas or direction on this stalling issue? Trying to help trace down this problem.

 

I wonder if your IAC is clogged or slow. You could start by cleaning the IAC passaged in the throttle body and see if that helps before swapping parts.

 

Thanks for the response. That was the first order of business, cleaned all passages, the IAC is a nos AC Delco. Behavior is the same.