1990 Pontiac Grand Am wont stay running

Tiny
LOCODRAKO
  • MEMBER
  • 1990 PONTIAC GRAND AM
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
It cranks over. Runs for about 1 second then dies. Its getting plenty of fuel (high flow, I dont have a pressure gage) and has spark. Where should I look next. When it is running it sounds fine. I'm a grad from WYO Tech but this one has me stumped.
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Wednesday, September 2nd, 2009 AT 8:04 PM

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Tiny
MMPRINCE4000
  • EXPERT
Have the ignition module tested at most autoparts stores for free.
Most GM engines must have an ignition reference or the pump will shut off.

I would also remove and clean the EGR valve.

If you have access to a scanner, scan in live data mode, look at RPM. If, when it dies, you are getting erratic RPM readings, then ignition module would be primary suspect.
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Friday, September 4th, 2009 AT 6:20 AM

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