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1989 Pontiac Firebird fuel problem

Tiny
MSERNA08
  • MEMBER
  • 1989 PONTIAC FIREBIRD
  • V8
  • 2WD
  • AUTOMATIC
  • 10,400 MILES
I have problem with my fuel systems. My fuel rails are getting fuel but car will not start. I put new fuel pump, fuel filter, new gas tank.I can spray starter fuid in it will start tell it burn out then wouldn't start. Whats going on. What should the pressure be on the rails.
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Saturday, June 19th, 2010 AT 4:33 PM

8 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check if the injectors are pulsing

TBI system fuel pressure should be 9-13psi
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Saturday, June 19th, 2010 AT 4:48 PM
Tiny
RUSSELL99
  • MEMBER
  • 6 POSTS
What would I do if the injectors are not pulsing because I am having the same problem on my 1988
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Sunday, October 17th, 2010 AT 3:09 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
If you're getting power on the injectors and not pulsing the computer ground driver circuit is defective
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Sunday, October 17th, 2010 AT 3:12 PM
Tiny
RUSSELL99
  • MEMBER
  • 6 POSTS
How would I go about replacing that or fixing that problem? Or what is the name of the part that I should look for?
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-1
Sunday, October 17th, 2010 AT 4:26 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Its inside the computer
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Sunday, October 17th, 2010 AT 4:31 PM
Tiny
RUSSELL99
  • MEMBER
  • 6 POSTS
So I would have to buy a new computer?
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Sunday, October 17th, 2010 AT 4:45 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Sounds like it-if the wires checked out and the computer is getting an ignition reference signal to sychronize the injectors
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Sunday, October 17th, 2010 AT 4:50 PM
Tiny
RUSSELL99
  • MEMBER
  • 6 POSTS
Ok thanks a lot.
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Sunday, October 17th, 2010 AT 4:53 PM

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