Mechanics

LASABRE FUEL PUMP

2002 Buick Lesabre

Engine Performance problem
2002 Buick Lesabre 6 cyl Front Wheel Drive Automatic 107000 miles

What should the fuel pressue be? And will a fuel pressure reading of 43 psi to 49 psi cause a MAF sensor code
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Greenie5
April 4, 2009.




Hello,

If that is your fuel pressure it is fine. If you are getting a MAF code first thing to do is to get some MAF Cleaner and clean it. About 7 out of 10 times it just needs to be cleaned.

Check out the following link for more info on how the MAF works....

http://www.2carpros.com/how_does_it_work/mass_air_flow_sensor.htm

.

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Obxautomedic
Apr 4, 2009.
Unhooked MAF sensor and now the car runs great. Thanks

Tiny
Greenie5
Apr 4, 2009.

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