sledge.impy

You replaced the coil but what about the coil wire?

ErmanEr

I think your car warms up much.. A sensor cuts the fuel.. Check all cooling components.. Or you're gonna replace opti every year..

Trans-Am-94

I have the same issue with my 94 Trans Am. I just bought the car, and I knew there was an issue with it, but recently its been getting worse where I can start the car (if I'm lucky) 4 times a day. I changed the ignition coil, ignition module, Ignition Coil Wires, fuel pump relay... And still no difference. Only when I take out my whole intake system off, and put it back together, does it sometimes work. I have to move a bunch of Wires to do that, so maybe it's a wiring issue? Most wires are almost new looking in car, except a few which are exposed. Help me?

73shark

Welcome to the forum. Can you describe in more detail what your car is doing and the circumstances in which it's doing it?

tech2

that can be a hard problem to find without the proper equipment. identifix may have a correction for you.



does the problem occur only at idle or does it stall at higher rpm also?

the good part is that the problem is very reproducible. Any dtc setting? diag those first. if no dtc; when the fault is active test for spark. if spark is present test for fuel pressure and injector pulse. if that is ok, check for cam and crank signals. if they are present, check power and grd to the pcm. if they are good you may need a pcm.


the wiring wiggle test is a good idea...keep trying it to see if it to see if makes the engine stumble and maybe you can isolate a bad section of wiring or bad fuse box.