P0521

P0521

Diagnosis information - Control unit DME (DFI)

Oil pressure sensor

Diagnostic conditions
- Idle speed > 1 Minute(s), then:
- Engine speed > 3,010 1/min, then:
- Switch off ignition and Ignition key remove > 1 Minute(s)

Possible fault causes
- Engine oil pressure too low
(Oil level, Oil dilution, Soiling Oil circuit, Oil circuit Faulty)
- Oil pressure sensor Faulty (incorrectly trimmed in comparison with Ambient pressure sensor)

Fault setting condition(s)
- Engine oil pressure > 6.2 bar at Engine speed < 1,000 1/min
or
- Engine oil pressure less than 1.5 bar at Engine speed greater than 3,800 1/min
or
- Deviation Engine oil pressure - Ambient pressure > 0.5 bar in control unit run-on phase (to Ignition off)