OBD-II code · Powertrain (generic, extended)
P2A7D Alternative Fuel Hydraulic Pressure Sensor Circuit High
Voltage on the alternative fuel hydraulic system pressure sensor signal line is above the expected window. Wire shorted to B+ or sensor open.
Is it safe to drive with P2A7D?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySignal wire shorted to B+
- PossibleOpen pressure sensor
- Less likelyConnector pins corroded - high contact resistance
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
- P2A7AAlternative Fuel Hydraulic Pressure Sensor Circuit
- P2A7BAlternative Fuel Hydraulic Pressure Sensor Range/Performance
- P2A7CAlternative Fuel Hydraulic Pressure Sensor Circuit Low
- P2A7EAlternative Fuel Hydraulic Pressure Sensor Circuit Intermittent/Erratic
- P2A7FAlternative Fuel Pump A Compression Stroke Valve Control Circuit/Open
- P2A80Alternative Fuel Pump A Compression Stroke Valve Control Circuit Range/Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.