P2A88
Alternative Fuel Pump C Compression Stroke Valve Control Circuit Range/Performance
The control circuit of the compression stroke valve in alternative fuel pump C reports a control circuit range/performance condition. Pump compression stroke cannot be commanded as expected.
The control circuit of the compression stroke valve in alternative fuel pump C reports a control circuit range/performance condition. Pump compression stroke cannot be commanded as expected.
Common causes
- high
Valve responds slower than expected
One of the most commonly reported causes for this code — check this first.
Typical part cost: $330-1650
- medium
High-resistance contact in connector
A plausible cause — test and verify before replacing parts.
Typical part cost: $330-1650
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First things to check
- 1Confirm the code with a scan tool and check for additional related codes.
- 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.
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Related codes
See related trouble codes
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Frequently asked questions
What does P2A88 mean?
P2A88 means "Alternative Fuel Pump C Compression Stroke Valve Control Circuit Range/Performance". It is a generic OBD-II code that points to a fault in the auxiliary emission controls.
What are the most common causes of P2A88?
valve responds slower than expected; high-resistance contact in connector; sensor element aged beyond calibration window — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.
Can I keep driving with this code?
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly. Use the Wrenchify app for a full diagnosis specific to your vehicle.
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