What does diagnostic code P0101 mean?

Mass Airflow
P0101 is a diagnostic trouble code (DTC) for “Mass Airflow (MAF) Circuit Operating Range or Performance Problem”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation.

What can cause a P0101 code?

The mass airflow sensor (MAF) measures the amount of air entering the engine. The OBD-II code P0101 is set when the signal from the mass air flow sensor is out of expected range, or in other words, the MAF sensor doesn’t work properly. In most cases, this code is not very difficult to diagnose.

What are the symptoms of a failing mass air flow sensor?

3 Signs of a Bad Mass Air Flow Sensor

• Stalling, jerking, or hesitation during acceleration.
• air fuel ratio is too rich.
• air fuel ratio is too lean.

What does trouble code p0101 on GMC Sierra mean?

A trouble code P0101: MAF Sensor System Performance Problem tells you that the fuel injection computer is seeing a problem with the MAF sensor signal. If this code is lighting up the check engine light on your V8 Chevrolet Silverado (GMC Sierra), then this article will help you.

What is the code for a Chevy Silverado 6.6hd?

07 Chevy 2500 Silverado 6.6 Duramax has 2 codes, P0101 mass air flow sensor. P0401 Egr flow insufficient. Checked air filter was in backwards, … read more 2013 Silverado 2500 HD Diesel 6.6 Duramax. A while back I 2013 Silverado 2500 HD Diesel 6.6 Duramax. A while back I had a check engine light. Took my code reader and got a P11CB.

What is the p0101 code for air flow?

P0101 CODE =MASS OR VOLUME AIR FLOW CIRCUIT RANGE/PERFORMANCE THE FIRST THING ID BE TRYIN WOULD BE CLEANING MASS AIR FLOW SENSOR ESPECIALLY IF YOU USE AN OILED FILTER SUCH AS k&N sorry bout caps to lazy to retype lol

When is the p0101 code set in Powertrain Control Module?

The P0101 code is set when the Powertrain Control Module (PCM) detects that the Mass Air Flow (MAF) sensor frequency is below a predetermined value.