PCM / wiring problem

[69camarokid]

so i have a 69 camaro with a 95 Trans Am LT1/t56 in it.

The computer was tuned by Brian from PCM4less.

When the cars ignition is in the starter on position the car will start. But when the key flips back to the power on position, after the starter has started, the engine will shut off.

I took it to my auto electrical shop and they said the car is losing power in the white power wire from the PCM to the ignition module when the key goes form starter position to power on position.

Im being told its not a wiring problem, but that its a compter tuning problem. I talked to brian from PCms and he said he doesnt think its a tuning problem. im stumped. anyone have a problem like this? any ideas would be a great help!!!!!

[matty b]

hook that wire to battery direct and see if it still happens. If it doesnt then make sure your igntion switch is working properly. If the motor is fairly unmodified and running the gm efi in it I would be hard pressed to say that its a tuning issue. Sounds to me like that shop gave up attempting to figure out the problem. which wire exactly is going dead? if you can give me the pin location on the computer like pin 10 for example Ill look over the schematic for it and see what its spposed to be doing. Lemme know and Ill try to help you out.