OBD-II code · Powertrain (generic, extended)
P2A6A Alternative Fuel Rail Pressure Regulator Pressure Sensor Range/Performance
The inlet pressure signal of the alternative fuel rail pressure regulator does not match plausibility checks against tank pressure and pump duty. Sensor drift.
Is it safe to drive with P2A6A?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySensor zero drifted
- PossibleSensor mounting loose - bias offset
- Less likelySensor element aged beyond calibration window
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–6 h
- Emissions test
- Likely to fail
- Parts involved
- Alt Fuel Rail Pressure Regulator, Alt Fuel Pump, Afcm
Related codes
- P2A67Alternative Fuel Tank C Level Sensor Circuit High
- P2A68Alternative Fuel Tank C Level Sensor Circuit Intermittent/Erratic
- P2A69Alternative Fuel Rail Pressure Regulator Pressure Sensor Circuit
- P2A6BAlternative Fuel Rail Pressure Regulator Pressure Sensor Circuit Low
- P2A6CAlternative Fuel Rail Pressure Regulator Pressure Sensor Circuit High
- P2A6DAlternative Fuel Rail Pressure Regulator Pressure Sensor Circuit Intermittent/Erratic
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.