My 89 5.7 Iroc has been giving me problems lately. the car has TPI,Paxton ball drive blower 5 PSI boost,MSD 6A and Boost timing box pretty much stock otherwise. Sometime ago the car started violentley surging and dying and not restarting when hot. The car would trip MAF code, I changed MAF no inprovement, code went away put old MAF back on and the code didn't come back. Car has good spark,fuel pressure and found no vacume leaks. A closer look revealed injector windings with resistance readings varying from 4 to 16 hms. I Replaced injectors with Accell 26 lb hr injectors. Idle quality is now good doesn't die at stoplights but still no hot restart and engine won't run with timeing connector unhooked. With timeing connector unhooked car will start momentarily then die. I plan to use a custom prom or an aftermarket Acell ECM [for the bigger injectors and the blower] after this problem is fixed. I also changed the ignition module and plug wires with no inprovment. I think the ECM went with the injectors, what do you think? Any suggestions or comments would be appreciated.
So basic is
A: Wont restart if car is hot
B: Wont start or run with little brown timing connectot unpluged (car does start momentarily then dies with connector unplugged)

Many Thanx , you guys know your stuff I hope you can help me here
I posted this on the tpi thread aswell but I really need help...
:rockon:

 

I only have a V6 but I had a problem similar to yours a while back...my starter had some major wear and tear, but would still crank the car cold. I replaced the starter and battery a while back, and that helped, but didn't fix it. Now we've pretty much narrowed it to the ignition system...Just hook up a $10 remote starter and see if that does it.

 

nevermind, i see you've already replaced your ignition stuff...try a remote starter anyway and see if you can start it hot with that.