94 z28 dies, cools off, starts, dies again
#11
hey there i got a problem my 93 z28 once it warms up it just dies then it kicks back on for a minute but sputters alot when i push the gas then dies completely the guages die and then i try starting again and just cranks wont start i replaced the coil and checked the ICM both good but i checked for spark TO the optispark and no spark i have gas fuel is good and pressured so does anyone have any ideas im missing??
#13
Trans Am Won't Start, Wire Short!
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?
#15
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.
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.
Last edited by tech2; July 28th, 2015 at 7:30 AM.
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