Mechanics

IT WILL START THOUGH IF I POUR GAS DIRECTLY DOWN THE THROTTLE BODY.

1987 GMC Truck

I have an 87 GMC with a motor out of a 1990 chevy and the fuel pump wont kick on with the key and spray out the injectors. I tried replacing the ignition module, fuel pump relay and the computer, but it will pop ecm fuses sometimes.
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Miky mike
December 3, 2011.




Check the injectors if its pulsing-by using a noid lite

Tiny
Rasmataz
Dec 3, 2011.
I tried the nod lite test. They dont pulse but I have 12 volt to them.
AD

Tiny
Miky mike
Dec 3, 2011.
Sounds like the computer injector driver

Tiny
Rasmataz
Dec 4, 2011.

AD