P009F

Symptoms

• Loss of engine power
• Unstable idling
• Increased fuel consumption
• Difficulty starting the engine
• Check Engine Indication

Causes

• Mechanical stuck pressure relief valve
• Short circuit in valve control circuit
• Open circuit in valve control circuit
• Malfunction of the solenoid valve (solenoid)
• Wiring Harness Problems
• ECU malfunction

How to Fix

1. Check the fuel pressure with a pressure gauge
2. Inspect the valve electrical circuit for damage.
3. Check the resistance and operation of the valve solenoid
4. Test valve operation using a scanner
5. Replace pressure relief valve if necessary
6. Clear error and test drive

Related codes

Error P009F by Vehicle Brand