Maintenance manual for sunray hfc4da1-2c china-IV diesel engines
149
Fault Tree:
Check the connector of fuel metering unit.
Repair accordingly.
Repair accordingly.
Repair the harness.
Repair the fuel metering unit.
Get the Technical Support.
Connector fault
Check the ECU connector.
Connector fault
Check continuity and insulating property.
Electrical fault
Resistance fault
Measure the resistance of fuel metering unit
(it is about 5.3 Ohms at 20℃)
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