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1996 Cadillac Fleetwood Injectors Not Pulsing

Tiny
MADDDNESS
  • MEMBER
  • 1996 CADILLAC FLEETWOOD
  • V8
  • 2WD
  • AUTOMATIC
  • 109,000 MILES
I've installed a VATS bypass module however the injectors are still not pulsing. I have traced the problem to a fuel issue. The fuel pump works. The fuel filter has been replaced but I am not getting fuel to the cylinders. Something is preventing the injectors from working. Is there a crank or cam sensor that fires the injectors? I believed my issue was with the VATS system but like I said I've installed a bypass module and still the injectors don't work. What should I try next?
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Monday, April 5th, 2010 AT 1:52 PM

4 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Hook up a noid lite on the injector harness if it doesn't flash check injector fuse no.16 10amp if okay your problem is coming from the computer injector ground drivers.
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Monday, April 5th, 2010 AT 3:18 PM
Tiny
MADDDNESS
  • MEMBER
  • 4 POSTS
We will be buying a noid light. Thank you very much for your speedy response. We have gotten the car to start after leaving the battery disconnected for an hour. It runs but its got 4 cylinders misfiring. We are now dealing with a 300 code.
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Monday, April 5th, 2010 AT 5:22 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
P0300 Random misfire normally caused by vacuum leak and contaminated fuel.
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Monday, April 5th, 2010 AT 6:40 PM
Tiny
MADDDNESS
  • MEMBER
  • 4 POSTS
We were pulling the injector harnesses from the injectors to see which cylinders were misfiring and it was 2578 and then it cleared up to just 7&8. Its not so much random.
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Monday, April 5th, 2010 AT 6:48 PM

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