OBD-II code · Powertrain (generic, extended)
P2A83 Alternative Fuel Pump B Compression Stroke Valve Control Circuit/Open
The control circuit of the compression stroke valve in alternative fuel pump B reports a control circuit/open condition. Pump compression stroke cannot be commanded as expected.
Is it safe to drive with P2A83?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyOpen in valve control wire
- PossibleOpen valve coil
- Less likelyPin pushed back out of connector body
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
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 2–6 h
- Emissions test
- Likely to fail
- Parts involved
- Alt Fuel Pump B Compression Stroke Valve, Wiring Harness, Afcm
Related codes
- P2A7FAlternative Fuel Pump A Compression Stroke Valve Control Circuit/Open
- P2A87Alternative Fuel Pump C 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
- P2A82Alternative Fuel Pump A Compression Stroke Valve Control Circuit High
- P2A84Alternative Fuel Pump B Compression Stroke Valve Control Circuit Range/Performance
- P2A85Alternative Fuel Pump B Compression Stroke Valve Control Circuit Low
- P2A86Alternative Fuel Pump B Compression Stroke Valve Control Circuit High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.