P2666 Code - Fuel Shutoff Valve 'B' Control Circuit Low
Quick Answer
The P2666 code indicates a problem with the fuel shutoff valve 'B' control circuit being detected as low. Common causes include Faulty fuel shutoff valve, Short or open circuit in the wiring connected to the valve, Malfunctioning fuel pump relay. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P2666 indicates Fuel Shutoff Valve 'B' Control Circuit Low.
- Common causes
- Common causes include Faulty fuel shutoff valve, Short or open circuit in the wiring connected to the valve, Malfunctioning fuel pump relay.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P2666 Description
The P2666 code indicates a problem with the fuel shutoff valve 'B' control circuit being detected as low. The fuel shutoff valve is responsible for controlling the flow of fuel to the engine, and if the control circuit is registering low, it can lead to issues with the vehicle's performance. This code typically affects vehicles with electronic fuel injection systems.
Common Causes of P2666
- Faulty fuel shutoff valve
- Short or open circuit in the wiring connected to the valve
- Malfunctioning fuel pump relay
- Problem with the engine control module (ECM)
- Electrical issues such as a blown fuse or corroded connectors
Symptoms of P2666
- Rough idling
- Hesitation or stalling
- Reduced fuel efficiency
- Lack of power when accelerating
- Check Engine Light illuminated on the dashboard
How to Fix P2666
- Diagnose the issue using a scan tool to determine the exact cause of the P2666 code.
- Inspect the wiring connected to the fuel shutoff valve for any damage or loose connections.
- Test the fuel shutoff valve for proper operation and replace if necessary.
- Check the fuel pump relay and engine control module for any faults and replace if needed.
- Clear the code and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P2666
The typical repair costs for addressing the P2666 code can vary depending on the specific cause of the issue. In general, the cost of replacing a faulty fuel shutoff valve can range from $150 to $300, while diagnosing and repairing wiring or electrical issues can cost between $100 and $200. Labor rates at auto repair shops can vary between $80 and $150 per hour, so the total cost of repairs may also be influenced by the shop's location and expertise with the vehicle's make and model. It's advisable to consult with a professional mechanic for an accurate estimate based on the specific circumstances of the vehicle in question.
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Code P2666 Information for Specific Makes
- P2666 Dodge — Fuel Shutoff Valve 'B' Control Circuit Low
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