Fuel Shutoff Valve Control Circuit/Open
The P2665 code indicates a problem in the electrical circuit that controls the fuel shutoff valve. This valve is responsible for cutting off fuel flow to the engine when the ignition is off or during certain safety conditions. An open circuit means there is a break in the wiring or a faulty component, preventing the valve from operating correctly. This can lead to fuel system issues, including potential engine stalling or no-start conditions.
01. Most Common Causes
- Open or shorted wiring in the fuel shutoff valve circuit
- Faulty fuel shutoff valve solenoid
- Corroded or loose electrical connectors
- Failed engine control module (ECM)
02. Symptoms You Will Notice
- Engine cranks but does not start
- Engine stalls unexpectedly
- Check Engine Light illuminated
- Fuel odor (if valve stuck open)
03. Step-by-Step Diagnosis
Step 1: Use a scan tool to confirm P2665 and check for related codes.
Step 2: Visually inspect the fuel shutoff valve wiring and connectors for damage, corrosion, or looseness.
Step 3: Test the fuel shutoff valve solenoid resistance with a multimeter (compare to specs).
Step 4: Check for power and ground at the valve connector with ignition on.
Step 5: If wiring and valve are okay, test the ECM output signal or consider ECM failure.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
No, it is not safe. The vehicle may stall or fail to start, leading to a potential accident or being stranded.
How much does it cost to fix?▼
Typically $50-$150 for diagnosis and repair, but costs can vary if the ECM needs replacement.