TROUBLESHOOTING
181
OK
OK
OK
OK
2. UNSTABLE IDLING
Checkpoint Trouble Cause Countermeasure
Idling system Idling improperly adjusted Adjust the idling
Fast idling speed control device
Defective fast idling speed
control device
Repair or replace the fast idling
speed control device
Accelerator control system
improperly adjusted
Adjust the accelerator control
system
Fuel system leakage or blockage Repair or replace the fuel systemFuel system
Accelerator control system
Air in the fuel system Bleed the air from the fuel system
Water particles in the fuel system Change the fuel
Fuel filter Clogged fuel filter element
Replace the fuel filter element or
the fuel filter cartridge
NG NG
NG NG
NG NG
NG NG
NG NG
NG NG
NG NG
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