Alright, I had a shop do an engine swap for me about 1 month ago. I had all sorts of problems at first but ended up solving most of them. Now I have a stuttering/stalling problem but only after my car has warmed up and when it is idleing. I think it has to be either an O2 sensor, or some problem with EGR. Just to let you know, I changed spark plugs, distributor, radiator, water pump, IAC valve, and a MAT sensor. Now it doesn't die as often but it still stutters violently. Timing is correct, and after running it on diagnostics the only thing that appeared incorrect was my IAC count. I'm truly stumped and so is my mechanic. Also, after giving my car about 3/4 throttle, I can smell something like burning oil and a small amount of smoke comes inside the car. If anyone else has experienced similiar problems, advice would be very much appreciated.

Matt

 

well you should just yank your IAC off and clean it up. Now I m use to the tpi set up, alright now if that doesn't work then check out your relays. Now relays can go bad if they their heated up, heck even check for a vac links, well hope you fix it.