OBD-II code · Powertrain (generic, extended)
P2A7E Alternative Fuel Hydraulic Pressure Sensor Circuit Intermittent/Erratic
The alternative fuel hydraulic system pressure sensor signal drops out or jumps intermittently. Loose connector or noisy ground.
Is it safe to drive with P2A7E?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySensor connector not seated
- PossibleNoisy ground reference
- Less likelyConnector with intermittent contact under vibration
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
- P2A7BAlternative Fuel Hydraulic Pressure Sensor Range/Performance
- P2A7CAlternative Fuel Hydraulic Pressure Sensor Circuit Low
- P2A7DAlternative Fuel Hydraulic Pressure Sensor Circuit High
- P2A7FAlternative Fuel Pump A Compression Stroke Valve Control Circuit/Open
- P2A80Alternative Fuel Pump A Compression Stroke Valve Control Circuit Range/Performance
- P2A81Alternative Fuel Pump A Compression Stroke Valve Control Circuit Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.