P2665 Possible Causes
- Defective fuel shutoff valve “B”
- Fuel shutoff valve “B” circuit is open or shorted
- Poor electrical connection in the fuel shutoff valve “B” circuit
How to Fix Code P2665
Check the “possible causes” listed above. Visually inspect the wiring harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
Illuminated engine light (or service engine soon warning light)
P2665 Meaning
The engine control module (ECM) monitors the fuel shutoff valve “B” control circuit. The ECM sets the OBDII code when the fuel shutoff valve “B” control circuit is outside factory specifications.