I have an 89 irocz 350tpi car. The car runs great and starts great when its cold. But after you run it for a while and cut it off it wont start back it will just crank. However you can spray a little bit of starting fluid in the intake and it will start right back up and will run as long as you want it to after it fires. It seems like the injectors are not wanting to fire on the intial restart but will work fine after one shot of starting fluid. Does anyone have any idea if it might be a sensor or what my issue might be?
Thanks
mike

 

Maybe the cold start injectors.

 

I swear you have echoed exactly my problem four or five months ago. In my case someone had put LT1 injectors in the car and the ECM did NOT like them and they were good injectors. They were 12ohm and these ECMs (1227165) are designed for 16ohm. So, I would check injectors and impedance. No cold start injector in 89.

 

The cold start is not operational on a warm engine

 

cold start injector was not used in 89