OBD-II code · Powertrain (generic, extended)
P2A90 Alternative Fuel Pump C Performance
The AFCM detects that alternative fuel pump C does not produce the expected pressure or flow for the commanded duty. Pump aging, internal leakage, or supply restriction.
Is it safe to drive with P2A90?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyPump internal wear reduces output
- PossibleFuel filter clogged
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
- 2–8 h
- Emissions test
- Likely to fail
- Parts involved
- Alt Fuel Pump C, Alt Fuel Filter
Related codes
- P2A8EAlternative Fuel Pump A Performance
- P2A8FAlternative Fuel Pump B Performance
- P2A8DAlternative Fuel Vaporizer C Performance
- P2A91Alternative Fuel Tank Select Valve A Control Circuit/Open
- P2A92Alternative Fuel Tank Select Valve A Control Performance
- P2A93Alternative Fuel Tank Select Valve A Control Circuit Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.