what causes mass air flow sensor problems

WHAT CAUSES MASS AIR FLOW SENSOR PROBLEMS HOW TO

The fuel injection computer then uses this air flow measurement (along with other input sensor information) to calculate the amount of fuel to inject into the engine. The mass air flow sensor's job is to measure the amount of air entering the engine. To better understand why this is a problem, take a look at the section: What Does The Mass Air Flow Sensor Do? Common Symptoms Of A P0101 Trouble Code Or the MAF sensor is reporting a larger than normal air flow measurement when the engine is idling (liken when your foot is off the accelerator pedal).

In a nutshell this means that the MAF sensor is reporting a smaller than normal air flow measurement when you're stepping on the gas pedal and engine RPM have increased. When this non-correlating air flow measurement occurs during at least 12 seconds of engine operation, the fuel injection computer sets the P0101 trouble code and lights up the check engine light.

6.0L GMC Sierra (2500): 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006Ī trouble code P0101: MAF Sensor System Performance Problem tells you that the MAF sensor is reporting an air flow measurement that DOES NOT correlate to the actual throttle plate angle (TPS signal) and engine RPM information the fuel injection computer is receiving from the crankshaft position (CKP) sensor.

More Chevrolet Silverado (GMC Sierra) Tutorials.ĪPPLIES TO: This tutorial applies to the following vehicles:.

WHAT CAUSES MASS AIR FLOW SENSOR PROBLEMS HOW TO

How To Diagnose And Repair A P0101 Trouble Code.

Common Symptoms Of A P0101 Trouble Code.

What causes mass air flow sensor problems