OBD-II code · Powertrain (generic, extended)
P2A7A Alternative Fuel Hydraulic Pressure Sensor Circuit
The ECM detects a generic fault on the alternative fuel hydraulic system pressure sensor circuit. Reading cannot be used reliably for control.
Is it safe to drive with P2A7A?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyPressure sensor failed
- PossibleWiring or connector fault
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–4 h
- Emissions test
- Likely to fail
- Parts involved
- Alt Fuel Hyd Pressure Sensor, Wiring Harness, Afcm
Related codes
- P2A77Alternative Fuel Hydraulic Pump Pressure Sensor Circuit Low
- P2A78Alternative Fuel Hydraulic Pump Pressure Sensor Circuit High
- P2A79Alternative Fuel Hydraulic Pump Pressure Sensor Circuit Intermittent/Erratic
- P2A7BAlternative Fuel Hydraulic Pressure Sensor Range/Performance
- P2A7CAlternative Fuel Hydraulic Pressure Sensor Circuit Low
- P2A7DAlternative Fuel Hydraulic Pressure Sensor Circuit High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.