Question about 1995 Buick Park Avenue

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95 buick park av. replaced cam sen. crank sen. mass air flow, replaced brain, replaced ignition mod. plugs, fuel injectors, seems like i,ts getting to much fuel please help.

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  • shawnsz
    shawnsz May 11, 2010

    check your return line for a pinch or see if it's stopped up . This will cause the fuel pressure to go real high. Have you checked the pressure and why do you think it is getting to much fuel?

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  • 33 Answers

Maybe an intake valve is stuck, not seating right.

Posted on Feb 20, 2009

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95 buick park avenue ignition problem


What is the fuel pressure it has to be at least
  1. Ignition "OFF" for 10 Seconds.
  2. With ignition "ON," engine "OFF" and fuel pump running, pressure should be 333-376 kPa (48-55 psi). For additional fuel pressure testing, See: Computers and Control Systems\Testing and Inspection\Symptom Related Diagnostic Procedures\A - E Charts & Related Test Procedures\A Charts\Chart A-7 Fuel System Diagnosis
  3. Have you tested the compression?
  4. A totally plugged cataltic converter can cause tis too because the engine cannot breathe
  5. to verify a plugged cat connect a vacuum guage to manifold vacuum and ccrank the engine you should get at least 2-4" of cranking vacuum providing the timing chain has not jumped and the cat is not plugged
If you find this information helpful please give me a good rating

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