Mass Air Flow (MAF) Sensor Guide & Diagnostic Information
The Mass Air Flow sensor measures the amount of air entering the engine so the PCM can calculate the correct fuel delivery.
Location on Vehicle
In the intake air ducting, between the air filter box and the throttle body.
Typical Symptoms of Failure
- Engine stalling
- Hesitation under acceleration
- Rough idle
Associated Diagnostic Trouble Codes
A malfunction in the Mass Air Flow (MAF) Sensor can trigger the following OBD-II fault codes:
Estimated Replacement Cost
Typical cost to replace the Mass Air Flow (MAF) Sensor: $100 - $400 (parts and labor).
Citations & Authority References
This technical part definition is cross-referenced with:
- EPA On-Board Diagnostics II Standard Specifications
- SAE J2012 Automotive Component Design Regulations