![]() 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:. ![]() ![]() How To Diagnose And Repair A P0101 Trouble Code.Common Symptoms Of A P0101 Trouble Code.
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