P1031

P1031

Diagnosis information - Control unit DME (DFI)

Fuel high-pressure sensor stuck (stuck) in the Engine start

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

Diagnostic conditions
- Engine start
- Engine temperature -10 ... +100 °C (°F)

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

Fault setting condition(s)
- no change in the voltage line Fuel high-pressure sensor sensor, at:
- Engine start