Note: Some MAF sensors also incorporate an air temperature sensor, which is another value used by the PCM for optimal engine operation.Ĭlosely related MAF circuit trouble codes include: Is not performing within the normal expected range of the calculated MAF value. The PCM detects that the actual MAF sensor frequency signal This P0100 diagnostic trouble code (DTC) means that there is a detected problem with the Mass Air Flow (MAF) The powertrain control module (PCM) uses that reading along with other sensor parameters to ensure proper fuel delivery at any given time for optimum power and fuel efficiency.

The MAF sensor itself only measures a portion of the air entering and that value is used to calculate the total volume and density of air being ingested. The MAF (mass air flow) sensor is a sensor mounted in a vehicle's engine air intake tract downstream from the air filter, and is used to measure the volume and density of air being drawn into the engine.

Although generic, the specific repair steps may vary depending on make/model. Brands include but are not limited to Toyota, Nissan, Vauxhall, Mercedes Benz, Mitsubishi, VW, Saturn, Ford, Jeep, Jaguar, Chevy, Infiniti, etc. This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles that have a mass airflow sensor. Mass or Volume Air Flow (MAF) Circuit Malfunction What does that mean?

P0100 MAF Circuit Malfunction Technical Description

Infiniti mass air flow sensor problems