P2666
Fuel Shutoff Valve B Control Circuit Low
P2666 is an OBD-II diagnostic trouble code meaning: Fuel Shutoff Valve B Control Circuit Low. Common causes: fuel cut-off valve b malfunction, open or short circuit in control circuit. Estimated repair cost: $17–56.
Symptoms
- Difficulty starting the engine
- Unstable engine operation
- Reduced engine power
- Check Engine Light Is On
- Increased fuel consumption
Causes
- Fuel cut-off valve B malfunction
- Open or short circuit in control circuit
- Poor contact in valve connector
- Engine control unit malfunction
- Corroded contacts or damaged wiring
How to Fix
- Check the condition of the fuel shut-off valve B
- Check the integrity of the control circuit and the condition of the connectors
- Measure valve resistance and compare with standard
- Check voltage on control circuit
- If necessary, replace the valve or repair the wiring
Related codes
Error P2666 by Vehicle Brand
FAQ
What does the P2666 code mean?
P2666 is an OBD-II diagnostic trouble code that indicates: Fuel Shutoff Valve B Control Circuit Low
What causes a P2666 error code?
The most common causes of P2666 include: Fuel cut-off valve B malfunction; Open or short circuit in control circuit; Poor contact in valve connector; Engine control unit malfunction.
How do I fix a P2666 diagnostic trouble code?
To fix P2666: Check the condition of the fuel shut-off valve B. Check the integrity of the control circuit and the condition of the connectors. Measure valve resistance and compare with standard. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2666?
Yes, but get it checked soon
How much does it cost to fix P2666?
The estimated repair cost for P2666 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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