P102A
Subfuel Solenoid Circuit Malfunction
P102A is an OBD-II diagnostic trouble code meaning: Subfuel Solenoid Circuit Malfunction. Common causes: faulty auxiliary fuel solenoid, open or short circuit in control circuit. Estimated repair cost: $17–89.
Symptoms
- Difficulty starting the engine, especially when cold
- Unstable engine operation at idle
- Reduced engine power
- Increased fuel consumption
- Check Engine Light Illuminates
Causes
- Faulty auxiliary fuel solenoid
- Open or short circuit in control circuit
- Poor contact in circuit connectors
- Corroded contacts or damaged wiring
- Engine control unit (ECU) malfunction
How to Fix
- Check solenoid resistance (compare with nominal value)
- Inspect the wiring harness and connectors for damage.
- Check voltage and continuity of control circuit
- If necessary, replace the auxiliary fuel solenoid
- Check and reflash the ECU if it is suspected of being faulty
Related codes
FAQ
What does the P102A code mean?
P102A is an OBD-II diagnostic trouble code that indicates: Subfuel Solenoid Circuit Malfunction
What causes a P102A error code?
The most common causes of P102A include: Faulty auxiliary fuel solenoid; Open or short circuit in control circuit; Poor contact in circuit connectors; Corroded contacts or damaged wiring.
How do I fix a P102A diagnostic trouble code?
To fix P102A: Check solenoid resistance (compare with nominal value). Inspect the wiring harness and connectors for damage.. Check voltage and continuity of control circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P102A?
Yes, but get it checked soon
How much does it cost to fix P102A?
The estimated repair cost for P102A is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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