OBD-II code · Powertrain (generic, extended)
P2A6E Alternative Fuel Rail Pressure Regulator Inlet Pressure Too Low
The measured inlet pressure of the alternative fuel rail pressure regulator falls below the calibrated minimum. Tank near empty, pump output insufficient, or upstream restriction.
Is it safe to drive with P2A6E?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyAlt fuel tank near empty
- PossibleAlt fuel pump output low
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
- 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
- P2A6FAlternative Fuel Rail Pressure Regulator Inlet Pressure Too High
- P2A70Alternative Fuel Hydraulic Fuel Pump Select Valve Control Circuit
- P2A71Alternative Fuel Hydraulic Fuel Pump Select Valve Control Range/Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.