2788 - P2290 (DME)

2788 - P2290

Information saved in
DME

Fault code
2788 - P2290

Fault text
Fuel pressure, setpoint/actual-value comparison at maximum
pressure

Fault description
Injector Control Pressure Too Low

Condition for fault identification
Test condition:
Fuel pressure too low at maximum pressure
Deviation between specified/actual pressure > -20 %
(K_PKS_OBD_Q_MIN)
Terminal condition: Engine running
Voltage condition:
Battery voltage > 10.9V (k_pks_obd_ub_min)

Condition for fault memory entry
4000 ms

Action in service
1. Conduct test routine
2. Check plug and wiring harness at fuel-pressure sensor,
replace sensor as indicated
3. Check plug and wiring harness at the fuel pump
4. Check fuel filter and pump, replace as indicated

Fault effect and breakdown warning
CC message
Engine speed limited
Reduced power
MIL after engine runs 2x

Driver information
Warning light:
MIL, EML, CC message, backup program

Service instruction
none