2003 Pontiac Grand Prix air flow sensor

Tiny
DENISEMCGAUGHY
  • MEMBER
  • 2003 PONTIAC GRAND PRIX
2003 Pontiac Grand Prix 6 cyl Front Wheel Drive Automatic

What does the air flow sensor look like? Where is it located?
Monday, December 7th, 2009 AT 7:05 AM

1 Reply

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
It is in airstream to throttle body and measures the volume of air to engine, this info is used to set fuel and ignition MAPS.

There are two different types depending on date of manufacture:


https://www.2carpros.com/forum/automotive_pictures/108325_MAF_GP_1.jpg




https://www.2carpros.com/forum/automotive_pictures/108325_MAF_GP2_1.jpg



You can buy a MAF cleaner at any autoparts stores, I would try to clean it before replacement.
Also change air filter, if dirty, it will cause unreliable MAF output readings.
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Monday, December 7th, 2009 AT 7:17 AM

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