1990 Pontiac Grand Prix 1990 Grand Prix problems

Tiny
JCOOKSKENNEL
  • MEMBER
  • 1990 PONTIAC GRAND PRIX
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 167,000 MILES
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!
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Thursday, April 22nd, 2010 AT 9:56 PM

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Tiny
MMPRINCE4000
  • EXPERT
Fuel pressure should be 40-45 psi.
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Saturday, April 24th, 2010 AT 8:31 AM

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