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2003 Buick Regal maf

Tiny
TYP1926
  • MEMBER
  • 2003 BUICK REGAL
Engine Performance problem
2003 Buick Regal 6 cyl Automatic

WHAT HAPPENS WHEN THE MASSAIRFLOW SENSOR GOES. DOES IT SEEM LIKE THE CAR DOES'NT WANNA CHANGES GEARS. OR WHAT?
Tuesday, December 8th, 2009 AT 2:02 AM

1 Reply

Tiny
ERNEST CLARK
  • MECHANIC
  • 1,730 POSTS
If your maf fails, then your computer won't be able to tell the fuel injectors how much fuel to spray into the motor.

So the computer should set a code and try to compensate by going into "Limp mode". This is a low-power mode that's meant to allow you to continue driving until you can get it to a shop.

It won't affect how you transmission shifts, but it will be drastically down on power.

But if you MAF is really at fault, then it will definitely set a code in your computer. If there's no code, then it isn't that sensor.
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Wednesday, December 30th, 2009 AT 2:37 PM

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