P2A28
Alternative Fuel Tank Shutoff Valve C Control Circuit Low
P2A28 is an OBD-II diagnostic trouble code meaning: Alternative Fuel Tank Shutoff Valve C Control Circuit Low. Common causes: alternate fuel shut-off valve malfunction, open or short circuit in control circuit. Estimated repair cost: $17–89.
Symptoms
- Switching to gasoline when running on alternative fuel
- Check Engine Light Illuminates
- Problems starting an engine on alternative fuel
- Reduced engine power
- Possible fuel odors
Causes
- Alternate fuel shut-off valve malfunction
- Open or short circuit in control circuit
- Poor contact in valve connectors
- Problems with the control unit
- Corroded contacts or damaged wiring
How to Fix
- Check the condition of the alternative fuel shut-off valve
- Check the integrity of the control circuit and the condition of the connectors
- Measure valve resistance and compare with nominal
- Check voltage on control circuit
- If necessary, replace the valve or repair the wiring
Related codes
Error P2A28 by Vehicle Brand
FAQ
What does the P2A28 code mean?
P2A28 is an OBD-II diagnostic trouble code that indicates: Alternative Fuel Tank Shutoff Valve C Control Circuit Low
What causes a P2A28 error code?
The most common causes of P2A28 include: Alternate fuel shut-off valve malfunction; Open or short circuit in control circuit; Poor contact in valve connectors; Problems with the control unit.
How do I fix a P2A28 diagnostic trouble code?
To fix P2A28: Check the condition of the alternative fuel shut-off valve. Check the integrity of the control circuit and the condition of the connectors. Measure valve resistance and compare with nominal. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2A28?
Yes, but get it checked soon
How much does it cost to fix P2A28?
The estimated repair cost for P2A28 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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