P3286

11A802 - P3286

Information saved in
DME

Fault code
11A802 - P3286

Fault text
Fuel high-pressure system 2, control: calculated fuel mass
invalid

Fault description
The diagnostic function monitors the actual mass of the
injected fuel and the operational integrity of the high-
pressure fuel sensor.

Condition for fault identification
Test condition:
The fault is recognized when the rail pressure on Bank 2
deviates from the specified pressure by -20 bar or the
pressure regulator deviates from the zero position by 20 bar
for three seconds and the lambda control or the adaptation
deviates by -10%.
Potential problem source(s):
- Defect in wiring harness
- Rail pressure sensor defective
Terminal condition: Terminal 15
Voltage condition:
- None
Temperature condition:
- None
Time condition:
- 15 sec. after engine start
Other conditions:
- none

Condition for fault memory entry
This fault is logged in the control module's fault memory if
it remains present for longer than 3 sec.

Action in service
- Check wiring harness
- Replace rail-pressure sensor

Fault effect and breakdown warning
Breakdown notice:
- The engine reverts to its limp-home program, continued
vehicle operation is possible but drivability is restricted,
because power is reduced the driver should refrain from
passing maneuvers.
Possible apparent symptoms:
- Stalls at low rpm when it reverts to default value

Driver information
Warning light:
- ECE emissions warning lamp: on
- US emissions warning lamp: on
- ECE electronic engine power reduction: on
- US electronic engine power reduction: on
- CC message: none

Service instruction
- none