Question about 1992 Pontiac Grand Prix

1 Answer

Wil not run

I have fire and fuel to rale but not to plugs

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  • sixpack6t9
    sixpack6t9 Mar 29, 2014

    Hi eddie bailey, I want to help you with your problem, but I need more information from you. Can you please add details in the comment box?

  • eddie bailey
    eddie bailey Mar 29, 2014

    I have fire on plugs and fuel pressure but will not start.

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  • Pontiac Master
  • 578 Answers

Eddie, first post said no fire on plugs, second said fire on plugs- whichnis it? Ifnyou have anfailing ignition coil, a plug will firemin free space, but not under pressure of the combustion chamber. Try new coil......

Posted on Mar 29, 2014

  • 2 more comments 
  • eddie bailey
    eddie bailey Mar 29, 2014

    hi, Jim I tried other coils there are 3 of them and I do have fire and fuel to rale 45 psi. but no fuel to cylinders.

  • Jim DuBreck
    Jim DuBreck Mar 29, 2014

    ok-sorry for typos before---using tablet keyboard...

  • Jim DuBreck
    Jim DuBreck Mar 29, 2014

    As I understand now- ignition is not an issue. So, with 45psi in fuel rail, the only item between the injector output and the fuel rail is the electronic control module or ECM. The ECM is a computer circuit that monitors air flow, gas peddle position, engine temperature, etc. It is fused ( first place to check). If is getting power, then a component in the ECM may have failed...and it will need to be replaced. You can check local junk yards -or bit the big one and buy a new one. Autopartswarehouse.com has a replacement for your car for 85 dollars.

  • eddie bailey
    eddie bailey Apr 01, 2014

    thanks jim, I think it has jumped timing the comp. is very low 50 psi or less. but thanks for the efo.

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