P0193

2786 - P0193

Information saved in
DME

Fault code
2786 - P0193

Fault text
Relative plausibility, fuel-pressure sensor to mechanical
pressure regulator

Fault description


Condition for fault identification
Test condition:
tmot > K_Sensor_OBD_TMOT_Min
&& !ekp_obd_vl_t
&& !B_ZUST_SA
&& !B_ZUST_SB
&& pumg > K_Sensor_OBD_PUMG_Min
&& ub > K_Sensor_OBD_Plus_Min
&& (!B_ED_Sensor_PUMG_FEHLER)
&& !B_EGAS_FEHLER
&& (time_ml > K_Sensor_OBD_TIME_ML_Min)
&& abs(can_ay) < K_Sensor_OBD_AY
&& can_fst_sum
Terminal condition: Engine running
Voltage condition:
ub > K_ED_PlusMin

Condition for fault memory entry
Fuel pressure too high at idle

Action in service
1. Perform system test routine
2. Check fuel filter, replace as indicated
3. Check plugs and wiring harness to fuel pumps, check
pumps and replace as indicated
4. Check fuel pressure sensor and replace as indicated

Fault effect and breakdown warning
MIL on after engine runs 2x

Driver information
Warning light:
29 - Engine malfunction

Service instruction
none