Kubota 07-CR-E5 - Pressure Limiter Emergency Open (DTC P0087; 633-7)

COMMON RAIL SYSTEM
07-CR-E5,07-CR-TE5,07-CR-TIE5, DM
1-S140
(3) Pressure Limiter Emergency Open (DTC P0087 / 633-7)
Behaviour during malfunction:
• Insufficient output
• Worsening exhaust gas performance
Detection item:
• Open circuit or +B short circuit of sensor / harness.
DTC set preconditions:
• Rail pressure sensor is normal
• Sensor supply voltage VCC# is normal
DTC set parameter:
• Combination of below A and B
A: Fuel leak (P0093) is detected
B: Condition (1) or (2) is fulfilled;
(1) Rail pressure exceeds 191 MPa (1950 kgf/cm
2
, 27700 psi)
(2) Within 1 sec, after the rail pressure goes below 191 MPa (1950 kgf/cm
2
, 27700 psi)
[Before the pressure decrease, the rail pressure is above 191 MPa (1950 kgf/cm
2
, 27700 psi)]
Engine warning light:
•ON
Limp home action by engine ECU (system action):
• Output limitation: Approximately 50 % of normal condition
• Speed limitation (Accelerator limitation: 50 %)
•EGR stop
• Intake throttle 100 % open
Recovery from error:
• Key switch turn OFF
9Y3200007CRS0179US0
KiSC issued 03, 2022 A