A fault code doesn’t yet mean the unit or sensor itself is faulty: often it’s the plug and connector leading to it.
Possible causes
- High-pressure lines or fittings are leaking
- Excessive injector back-leak
- Pressure relief valve
What you can do yourself
- Stop the engine and inspect it for fuel leaks — there is a fire risk.
- Don’t drive until you find the leak.
Stop and don’t drive on if:
- The Check Engine light is flashing
- The temperature gauge is in the red or the overheating light is on
- The red oil pressure light is on
- Smoke from under the bonnet, a burning or petrol smell
- Strong jerking, knocking from the engine, or the car barely moves
The explanation comes from the error code reference in the AvtoElektrik PRO app.