1990 Pontiac Grand Prix 1990 grand prix problems

1990 PONTIAC GRAND PRIX
167,000 MILES • 6 CYL • FWD • AUTOMATIC
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JCOOKSKENNEL
  • MEMBER
  • 1 POST
it runs for like 10 minutes then bogs out,it will idle fine and restarts every time but it bogs down completely!??? I have taken the catalytic converter off and it doesnt have a mass air flow sensor but a map sensor but i changed it also??? I have also changed the fuel filter,crank sensor, and temp sensor and I have checked the fuel pump pressure and it says like 30 pound pressure so if u have any ideas would u please let me know!!!!!! The weird think is the check engine light is not on at all so if u can help please let me know!!!! Thanks alot!!!!!
Apr 22, 2010 at 9:56 PM
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MMPRINCE4000
  • ASE Certified Mechanic
  • 8,548 POSTS
  • ASE Certified Mechanic
Fuel pressure should be 40-45 psi.
Apr 24, 2010 at 8:31 AM
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