Kubota 07-CR-E5 - Page 107

COMMON RAIL SYSTEM
07-CR-E5,07-CR-TE5,07-CR-TIE5, DM
1-S69
9Y3200007CRS0107US0
Name Pressure limiter emergency open
ISO 14229
P-Code
P0087
J1939-73
SPN 633
FMI 7
SPN Name
SAE J1939 Table C1
Engine Fuel Actuator 1 Control Command
DTC Name Pressure limiter emergency open
Detection item • Pressure limiter emergency open
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)]
Time to action or
number of error
detection
• One time or more
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
Behaviour During
Malfunction
• Insufficient output
• Worsening exhaust gas performance
Engine Warning
Light
•ON
Recovery from
error
• Key switch turn OFF
Delay time for
recovery
–
Remark
• To minimize PM emission to DPF
• Engine speed may go down due to lack of fuel pressure, regardless limp home de-rating
KiSC issued 03, 2022 A