Fault code P0007 – a step-by-step guide to diagnosing and fixing it

Error code P0007 is displayed and the check engine light is on - what does this mean?

The DTC P0007 is recognized by the OBD system when there is a problem with the fuel shut-off valve control circuit "low". This EOBD fault code relates to the fuel injection system and may have slightly different definitions for different manufacturers, but basically refers to problems in the electrical control of the fuel cut-off valve.

What can cause this fault code?

• Defective fuel cut-off valve
• Damaged wiring to the fuel cut-off valve
• Loose or corroded plug connections
• Short circuit in the electrical cable
• Defective engine control unit (ECU)
• Blown fuse in the fuel circuit
• Faulty earth connection
• Overvoltage in the electrical system

What symptoms occur in parallel with fault code P0007?

• Starting problems: The vehicle is difficult or impossible to start
• Irregular idling: The engine runs irregularly at idle speed
• Engine stuttering: Jerky vehicle movement while driving
• Reduced engine power: Noticeable loss of power when accelerating
• Increased fuel consumption: Significant increase in fuel consumption
• Stalling of the engine: Sudden engine shutdown during operation

How can the problem with error code P0007 be rectified?

• Repairing trouble code P0007 requires a systematic diagnosis of the fuel cut-off valve control system.
• Checking and replacing the defective fuel cut-off valve with a new original part
• Checking the complete wiring to the valve and repairing damaged lines
• Cleaning or replacing corroded plug connections and ensuring firm contacts
• Locating and repairing short circuits in the electrical wiring using a multimeter
• Checking and, if necessary, replacing the associated fuses in the fuse box
• Checking the earth connections and restoring proper earthing
• Diagnosis of the engine control unit and repair or replacement if defects are found