Code result
P000F
Fuel System Over Pressure Relief Valve Activated
High severity
What it means
The mechanical pressure relief valve on the fuel rail has opened due to overpressure. Indicates a malfunction of the rail pressure regulation that drove pressure beyond the safe limit.
Is it safe to drive?
No — stop driving
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.
Most likely causes
Pressure regulator valve stuck closed
highOne of the most commonly reported causes for this code — check this first.
Rail pressure sensor reading low
mediumA plausible cause — test and verify before replacing parts.
Related help
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