Fuel System Over Pressure Relief Valve Activated

Where it lives

For P000F, the part to look at first is the valve named here.

Check these first

• A stuck open fuel pressure relief valve
• A failed fuel pressure regulator
• A restricted fuel return line
• A failed fuel pressure sensor feeding wrong readings

What to do next

1. Read fuel pressure live data and compare it to the expected value
2. Inspect the fuel pressure relief valve for sticking open
3. Check the fuel return line for a restriction
4. Test the fuel pressure regulator and replace it if faulty
5. Replace the fuel pressure relief valve if it stays open
6. Clear the code and retest

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