Mass or Volume Air Flow B Circuit Range/Performance - Air Flow Too High
Mass or Volume Air Flow B Circuit Range/Performance - Air Flow Too High: the signal is implausible or outside the valid range.
Affected components
- Mass air flow sensor b
Common causes
- High likelihood: MAF B reading drifted high
- Low likelihood: Sensor element aged beyond calibration window
- Low likelihood: Sensor mounting loose - signal damping
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- A drive cycle may be required after repair
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.