Scv Stuck (Dtc P0089 / 1347-7) - Kubota 07-CR-E5 Manual

07-CR-E5,07-CR-TE5,07-CR-TIE5, DM

(5) SCV Stuck (DTC P0089 / 1347-7)

Behaviour during malfunction:
• Insufficient output
• Worsening exhaust gas performance
• Engine stops in some case
Detection item:
• SCV stuck at open position (Actual rail pressure continuously exceeds the command rail pressure)
DTC set preconditions:
• Supply pump is normal and pump calibration has been executed
• Engine is operating (Q: 4 mm
• Injector is normal
• Battery voltage is normal
• Sensor supply voltage VCC# is normal
• Rail pressure sensor is normal
DTC set parameter:
• Discharge request of supply pump goes below 0 mm
1400 psi) higher than command pressure
• Above state continues for 26 seconds or more
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
3
/st or higher)
3
/st and the actual rail pressure is 10 MPa (100 kgf/cm
1-S150
COMMON RAIL SYSTEM
2
,
9Y3200007CRS0189US0
KiSC issued 03, 2022 A