[spina74]

Originally Posted by sweetbmxrider

Did you use a test light or a noid light to test the injectors?

Im not sure what exactly its called but it plugs into the injector plug.

Originally Posted by chrisfrom nj

check the fuel pressure sounds like a cloged fuel filter or bad pump i had the same problem on the 88 gta

Fuel pressure is perfect.

Originally Posted by Stevoone

I've had issues with the underhood fuse blocks on them. they would run fine then just cut out and half of the fuse block would lose power. I want to say it was a faulty fuse block but I can't remember, may have been an ignition switch too. I think I have a test switch if you want to try it. Ignition switches were fairly common for other issues on them, mostly headlamps, radio and hvac turning on and off.

Does it restart immediately after it stalls? The ICM and MAF usually won't restart until they cool down for a while. I've also had a few issues with cam sensors. A cam sensor usually won't cause a stall tho.

Edit: I also had a Buick with a 3.8 that had loose terminals at the ICM connector, would run perfect for a while then just stall. Would occasionally restart. I could make it stall by manipulating the ICM connector while it was running. I have the terminals and the tools to repin the connector if it turns into this.

Sometimes it immediatly starts and sometimes not. I played with the icm and pcm harness and nothing. Still won't start and when its running if I play with the harness it does not stall.

Originally Posted by S.J.SLEEPER

when you say..." sometimes wont start at all" do you mean it cranks over but doesn't fire or that it does nothing when you turn the key? I ve seen them shut off & no crank, then work fine from corroded battery terminals. could have bad module that the coils sit on too.

It always cranks, just wont fire sometimes. When it does start back up immediatly I have to hold the gas down to keep it running it will dump black smoke and sound like it has a huge cam, then it will clear itself out and run perfect..until it stalls again.