OBD-II code · Powertrain (generic, extended)
P2A74 Alternative Fuel Hydraulic Fuel Pump Select Valve Control Circuit Intermittent/Erratic
The control circuit of the alternative fuel hydraulic fuel pump select valve reports a control circuit intermittent/erratic condition. Pump path selection cannot be commanded reliably.
Is it safe to drive with P2A74?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyValve connector not seated
- PossibleHarness chafing intermittently shorts the wire
- Less likelyConnector with intermittent contact under vibration
Symptoms
- Check engine light on
- Hard start, no start, or stalling under load
- Power loss especially at high load or rpm
- Possible long cranking time
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 Pump Select Valve, Wiring Harness, Afcm
Related codes
- P2A71Alternative Fuel Hydraulic Fuel Pump Select Valve Control Range/Performance
- P2A72Alternative Fuel Hydraulic Fuel Pump Select Valve Control Circuit Low
- P2A73Alternative Fuel Hydraulic Fuel Pump Select Valve Control Circuit High
- P2A75Alternative Fuel Hydraulic Pump Pressure Sensor Circuit
- P2A76Alternative Fuel Hydraulic Pump Pressure Sensor Range/Performance
- P2A77Alternative Fuel Hydraulic Pump Pressure Sensor Circuit Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.