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I just dont know

Tiny
BOBBUG
  • MEMBER
  • 1989 CHEVROLET TRUCK
  • V8
  • 4WD
  • MANUAL
  • 100,000 MILES
I have a 1989 1ton chevy 5.7L. My fuel pumps stopped working so I hot wired them and now thay work but my injectors still dont work. Can you guys point me in the right direction?
Wednesday, December 22nd, 2010 AT 6:17 PM

1 Reply

Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Injectors are controlled by the PCM and if they do not pulse, it could mean a bad PCM.

That could be the reason the fuel pump is not working a well.

Check PCM connections and grounding circuits.
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Sunday, December 26th, 2010 AT 11:37 AM

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