Skip the auto shop - Our mechanics make house calls

Q: 2006 GMC 2500 HD P0101 Mass ari flow sensor (MAF) performance

asked by on

Get P0101 MAV (Mass Airflow) code in a 2006 GMC 2500HD 6.6 Duramax w/122000klm. Also have had loss of power a few times when pulling a 5th wheel trailer and tank falls below 1/4 full.

1 - Can Mass Air Flow sensor be 'cleaned' ? 2 - Is there a significant difference between an original GM replacement part or an aftermarket part other than price?
3 - Is the 2 - wire temperature sensor (1 hot, 1 cold) the 'best' MAF sensor for the 2006 GMC

My car has 65000 miles.
My car has an automatic transmission.

The powertrain control module (PCM) sends the mass air flow (MAF) sensor a 12-volt reference signal. Incoming air flows over a wire inside the MAF, which allows it to measure intake air temperature, and therefore air density. The MAF then sends a proportional voltage return signal back to the PCM. The PCM uses this information to determine fuel control. Sometimes cleaning the sensor wire with dedicated MAF cleaner is all that’s needed, other times the sensor requires replacement. It’s a good idea to try cleaning it first. If replacing/cleaning the MAF doesn’t help, suspect a problem with the MAF circuit wiring or the PCM itself. An OEM, or OEM equivalent replacement MAF is the best option. If you’d prefer to leave the job to a professional, YourMechanic is here to help. We offer expert MAF diagnosis and replacement

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: 4x4 won't engage and push button switch lights up intermittently.

Hi there. Check the electrical wiring to the transfer case shifter motor and see if there is a voltage present when pushing on the 4WD button. If there is a voltage present, then I recommend replacing the servo motor on...

Q: Car computer gave me a P0441 code.

A code P0441 could mean one or more of the following has happened: Bad vacuum switch broken or damaged EVAP line or canister open in PCM purge command circuit open or short in Voltage feed circuit to Purge Solenoid faulty...

Q: 1980 Suburban 454 bad timing chain changed it's on high one Distributors .1 a crank gear and cam gear is off their mark

The procedure to align all the marks is set forth in the Factory Service Manual and unfortunately it is not "brief". The most efficient thing to do to get this resolved is to request timing chain verification/replacement and the responding...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...