Kubota 07-CR-E5 - Takes a Long Time before Engine Starts

COMMON RAIL SYSTEM
07-CR-E5,07-CR-TE5,07-CR-TIE5, DM
1-S35
(3) Takes A Long Time Before Engine Starts
Possible causes:
1. Fuel feed pump operation fault.
*Refer to the previous "List of malfunction causes by symptom" for the subsequent details.
2. Engine fault
• Low compression pressure.
• Engine internal fault
• Valve timing fault
3. Control system
• Damage to the pulsar gear of the crankshaft position sensor
• Air gap of the crankshaft position sensor is large
• Damage to the pulsar gear of the camshaft position sensor
• SCV operation fault
4. Engine electrical system
• Battery fault
5. Intake system
• Glow (intake air heater) relay fault
• Glow plug fault
6. Fuel system
• Fuel quality
• Fuel filter clogging
• Fuel pressure limiter fault
• Fuel line clogging, leak
7. CRS (Including the wiring harness)
• Output system (Supply pump, injector and common rail)
• Input system (Sensors and switches)
•Engine ECU
8. Others
• Large amount of drag (Including the brakes, etc.)
9Y3200007CRS0036US0
1. Check the Fuel Feed Pump Operation
1. Turn the key switch ON and check that the fuel feed pump is
operating.
9Y3200007CRS0027US0
2. Check the DTC
1. Turn the key switch ON and check the DTC.
DTC presently existing
Past DTC only
9Y3200007CRS0037US0
Service
specification
Operates when the key switch is turned ON.
OK Go to "2. Check the DTC".
NG Check in accordance with "6.[2] FUEL SYSTEM INSPECTION
PROCEDURE - 5. Check the Fuel Feed Pump". (Refer to page 1-S324)
(1) Fuel Feed Pump
Service
specification
No DTC is output.
OK Go to "3. Check the Starting Assist Device".
NG Check in accordance with the troubleshooting procedures for each DTC.
OK Go to "3. Check the Starting Assist Device".
NG Reproduce defect by referring to the freeze frame data, etc.
(a) CAN1 Connector
KiSC issued 03, 2022 A