mass air flow sensor on 2000 Buick LeSabre

i have a 2000 lesabre ive replaced the maf sensor twice but i still have the same code it but when i start car it turns off but it runs once fuel pump comes on

by in Nacogdoches, TX on June 15, 2009
2 answers 3 comments
ANSWER by on June 15, 2009
Sounds like the MAF sensor is not your problem, what is the code you are getting?
COMMENT by on June 15, 2009
po102 mass air flow sensor or vaf low input but once the fuel pumb makes noise in back of car the car leavels off
COMMENT by on June 16, 2009
You have to make sure there are no vacuum leaks in the intake system, make sure the connector terminals are clean and tight and the wiring needs to be in good condition. This mean you may need to check the wiring with a volt/ohm meter between the MAF and the ECM. Check the ground wires very closely as well. You may have another issue as well, check the fuel pressure and make sure the pump is working normally.
COMMENT by on October 15, 2012
Just an FYI for those still reading this post. The noise that appears to be coming from the fuel pump in the back is not the fuel pump, but a leveling motor to the suspension system. When the car is started, a sensor in the rear tells the motor if the suspension needs to be raised, which will occur more frequently with shocks that have not been replaced in a while.
ANSWER by on October 28, 2014
Replace the pigtail that connects the MAF. Seen this problem several times in the last few years.
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The mass air flow or crankshaft position sensor may fail causing the engine to stall intermittently. Proper diagnoses will be necessary to determine the cause of any stalling condition.
2001 lesabre dies intermitently will not start until code p0101 is erased changed mass air flow sensor no change what now?
i hear a sucking sound for 30 sec or more when its cold it stops then i can drive off. when i stop at a light the RPMs raise up like im about to take off. sometimes it ideal down.
I had a repair shop replace the crankshaft position sensor,but it still quits running without any notice while driving it! What else could cause this problem?

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