It will start though if i pour gas directly down the throttle body.

1987 GMC TRUCK
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MIKY MIKE
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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.
Dec 2, 2011 at 4:01 PM
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RASMATAZ
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Check the injectors if its pulsing-by using a noid lite
Dec 2, 2011 at 4:16 PM
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MIKY MIKE
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I tried the nod lite test. They dont pulse but i have 12 volt to them.
Dec 3, 2011 at 11:35 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,992 POSTS
Sounds like the computer injector driver
Dec 3, 2011 at 4:05 PM
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