1996 Cadillac Fleetwood Injectors Not Pulsing

1996 CADILLAC FLEETWOOD
109,000 MILES • V8 • 2WD • AUTOMATIC
Avatar
MADDDNESS
  • MEMBER
  • 4 POSTS
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?
Apr 5, 2010 at 1:52 PM
Advertisement
Avatar
RASMATAZ
  • CERTIFIED EXPERT
  • 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.
Apr 5, 2010 at 3:18 PM
Avatar
MADDDNESS
  • MEMBER
  • 4 POSTS
[quote:80f1a92182="rasmataz"]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.[/quote:80f1a92182]

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.
Apr 5, 2010 at 5:22 PM
Advertisement
Avatar
RASMATAZ
  • CERTIFIED EXPERT
  • 75,992 POSTS
P0300 Random misfire normally caused by vacuum leak and contaminated fuel.
Apr 5, 2010 at 6:40 PM
Avatar
MADDDNESS
  • MEMBER
  • 4 POSTS
[quote:660db52464="rasmataz"]P0300 Random misfire normally caused by vacuum leak and contaminated fuel.[/quote:660db52464]

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.
Apr 5, 2010 at 6:48 PM