P1030

P1030

Diagnosis information - DME (DFI)

Fuel high-pressure sensor stuck

NOTE:
- Faults in the fuel high-pressure injection area are often caused by defects in the pre-delivery circuit (fuel low-pressure).
- Therefore, if there are problems in the fuel high-pressure injection area, the pre-delivery circuit must be checked first.

NOTE: Diagnosis detects that the fuel high pressure does not seem to change while the engine is running.

Diagnostic conditions
- Battery positive voltage > 9 V
- Engine running (driving)
- Engine temperature -10 °C ... +100 °C (50 °F ... 212 °F)

Possible fault causes
- pre-delivery quantity or pressure in fuel low-pressure circuit too low
- Fuel high-pressure sensor faulty