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Trying to start the engine, indicating no injector Pulse?

Tiny
JOHN FELLA
  • MEMBER
  • 1989 FORD FESTIVA
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
Back on my 1989 ford festiva engine not starting problem I used a test light connected to the negative post of the battery and the test end to the fuel injector plug and there was no blinking of the test light while trying to start the engine, indicating no injector pulse.?
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Monday, July 11th, 2011 AT 9:12 PM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Use a noid lite this will tell you if both wiring is good if the lite is pulsing, also if there's power on one side and injector is not pulsing-the problem is with the computer injector ground driver
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Monday, July 11th, 2011 AT 9:25 PM
Tiny
KAISON
  • MEMBER
  • 2 POSTS
I have 1989 ford festiva it turns on but won’t crank just makes a hum of the fuel pump coming on and then a slightly lighter hum when I turn the key over originally I put it in the shop cause it was idling at 30 mph and died when I tried to stop any ideas at all would be helpful thank you
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Monday, November 28th, 2022 AT 9:13 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,822 POSTS
Usually, the fuel pump changes tone when it is out of gas? To confirm it is a fuel problem see if the engine will run on starting fluid.

Check out this it can help as well:

https://www.2carpros.com/articles/car-not-running-advanced

Please go over this guide and report back.
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Monday, November 28th, 2022 AT 5:11 PM

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