P2666 Code: Meaning, Causes, and Symptoms | OBD2 Codes

P2666 – Fuel Shutoff Valve ‘B’ Control Circuit Low

 

P2666 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

P2666 Possible Causes

 

Faulty Fuel Shutoff Valve ‘B’,Fuel Shutoff Valve ‘B’ harness is open or shorted,Fuel Shutoff Valve ‘B’ circuit poor electrical connection

 

P2666 Description

 

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 out of factory specifications.