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2000 Pontiac Grand Prix Mass Air Flow Sensor

Tiny
WNCARROLL
  • MEMBER
  • 2000 PONTIAC GRAND PRIX
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 160,000 MILES
I have diagnosed the problem indicated by my "Service Engine Soon" light coming on thru the auto parts store - purchasing Mass Air Flow cleaner. Do that and having the code cleared and now the light is back on. Does this mean a bad sensor? And what does it do, exactly. What kind of damage can be done it I do not correct it soon?

thanks,

Bill
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Friday, June 26th, 2009 AT 1:19 PM

1 Reply

Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Normally when you retrieve a MAF sensor trouble code, the sensor itself is NOT at fault. It is actually just dirty passageways that the air flows through before and after the MAF sensor that confuses the vehicle's computer into thinking the MAF sensor itself is bad. This issue will cause poor fuel mileage and you may also experience slight missing in the engine at times.
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Friday, June 26th, 2009 AT 3:56 PM

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