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1989 Pontiac Grand Prix 2.8L no injector Pulse.

Tiny
DEAN STREY
  • MEMBER
  • 1989 PONTIAC GRAND PRIX
Replaced cps, ecm, icm, unplugged tps, still no injector pulse. When I replaced the ecm with a used part it fired up one time and then nothing again after that. Tried 3 other ecms, 2 of them ran in other cars. IT HAS SPARK BUT NO INJECTOR PULSE?
Monday, January 8th, 2007 AT 3:58 AM

1 Reply

Tiny
CARUNDELL
  • MECHANIC
  • 602 POSTS
Hey dean,
Lets get back to some basics, verify good ground for each injector, verify each injector has adequate 12v supply voltage. Get back to me!

Chris
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Tuesday, January 9th, 2007 AT 3:17 PM

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