119304 - P0088 (DME)

119304 - P0088

Information saved in
DME

Fault code
119304 - P0088

Fault text
Rail pressure sensor, plausibility: Maximum pressure
exceeded

Fault description
The diagnostic function monitors the fuel rail for excessive
pressure levels prior to the engine start.

Condition for fault identification
Test condition:
The fault is recognized when the relative rail pressure prior
to engine start is >10 bar, and a mixture fault or fuel high-
pressure circuit fault appears following the engine start.
Potential problem source(s):
- Defect in wiring harness between DME and rail-pressure
sensor
- Defective rail-pressure sensor
- Defect in high-pressure system
- Defective DME
Terminal condition: none
Voltage condition:
- Onboard electrical system voltage between 9 V and 16 V
Temperature condition:
- Engine warmed to normal temp, above 80 °C
Time condition:
- 10 sec. after engine start
Other conditions:
- Engine ON

Condition for fault memory entry
The diagnostic fault code is logged when the fault remains
present for longer than 1 min.

Action in service
- Check wiring harness between DME and rail-pressure
sensor
- Replace rail-pressure sensor
- Repair problem in high-pressure fuel system
- Replace DME

Fault effect and breakdown warning
Breakdown notice:
Standard EML Text
Possible apparent symptoms:
Reduced power

Driver information
Warning light:
- ECE emissions warning lamp: on
- ECE electronic engine power reduction: on
- CC message: on
- US emissions warning lamp: on
- US electronic engine power reduction: on
- CC message: on

Service instruction
None