P0103moderate severityPowertrain
Mass Air Flow (MAF) Circuit High Input
on 2014 Ram 2500 6.7L I6 Cummins Diesel · 4WD
What this code means
The MAF sensor signal voltage is higher than the maximum expected value.
Symptoms
- Check Engine Light
- Lean fuel condition
- Poor acceleration
- Engine surge
Common causes
- Faulty MAF sensor
- Short to voltage in signal wire
- Water damage to sensor
Diagnostic steps
- Check MAF sensor connector
- Test signal voltage
- Inspect wiring for shorts to power
- Test sensor output
Repair notes
Replace MAF sensor or repair wiring.
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