Scv Stuck (Dtc P0089 / 1347-7) - Kubota V3800-CR-TE4 Diagnosis Manual

V3800-CR-TE4,V3800-CR-TIE4, 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 and 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
System action:
• Output limitation: Approximately 50 % of normal condition
• Speed limitation (Accelerator limitation: 50 %)
• Rail pressure limitation: Command pressure ≤ 80 MPa (820 kgf/cm
• EGR stop
Recovery from error:
• Key switch turn OFF
3
/st and the actual rail pressure is 10 MPa (100 kgf/cm
2
, 12000 psi)
1-S139
COMMON RAIL SYSTEM
3
/st or higher)
2
,
9Y1200192CRS0673US0
KiSC issued 05, 2012 A