2003 Buick Regal maf

2003 BUICK REGAL
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TYP1926
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  • 1 POST
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?
Dec 8, 2009 at 2:02 AM
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ERNEST CLARK
  • ✓ASE Certified Mechanic
  • 1,730 POSTS
  • ASE Certified Mechanic
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.
Dec 30, 2009 at 2:37 PM
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