2006 Pontiac Grand Prix

2006 PONTIAC GRAND PRIX
80,000 MILES • 6 CYL • FWD • AUTOMATIC
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HOWIECOOPER
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  • 2 POSTS
map sensor how would know that it was gone
Feb 6, 2010 at 7:23 PM
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MMPRINCE4000
  • CERTIFIED EXPERT
  • 8,548 POSTS
A failed MAP sensor would make car run rich, stall and would be hard to start.

Best way to isolate MAP is to hook up car to scanner in live data to see MAP readings.
Also check MAP sensor for leaks around seal, or loose seal.
Feb 7, 2010 at 7:53 AM