Seems like the cold start part of my fuel injection on my TPI iroc doesn't work. When I first start the car on a cool day, it almost dies and barely runs, then backfires through the intake a couple times as you take off. Then when it warms up to about 160ish, it runs perfectly fine and doesn't exhibit any of these problems. Whats going on here??? No engine codes either.

 

your electronic choke if u have one took a dump?

 

there is electronic choke on TPI?

 

I don't know, hence why i had a question mark on the end of my sentence... A sticky choke causes those symptons but i don't know much about tpi...

 

umm i would say no choke as it is fuel injected. still has a choke function would have to. cold start injector has something to do with it and the comp controls the idle but i don;t know how off hand.....sorry i'm of little help

 

May be your cold start injector.

 

See my reply in this thread. https://www.thirdgen.org/techbb2/sho...hreadid=208578

 

You can rule out the choke since there's not one.
The cold start inj only works when the starter is being engaged, so you can rule that out too.

I'd check fuel press and for vacuum leaks. Sounds like you're running lean.