TROUBLESHOOTING
188
OK
OK
OK
OK
OK
OK
4. EXCESSIVE FUEL CONSUMPTION
Checkpoint Trouble Cause Countermeasure
Fuel system Fuel leakage
Repair or replace the fuel system
related parts
Air cleaner Clogged air cleaner element
Clean or replace the air cleaner
element
Poorly adjusted idling speed Adjust the idling speed
Injection nozzle injection starting
pressure too low
Improper spray condition
Adjust or replace the injection
nozzle
Fuel injection timing
Injection nozzle
Idling speed
Fuel injection timing improperly
adjusted
Adjust the fuel injection timing
Injection pump
Defective delivery valve resulting
is fuel drippage after fuel
injection
Replace the delivery valve
Turbocharger
Air leakage from the turbocharger
intake side
Repair the turbocharger intake
side
NG NG
NG NG
NG NG
NG NG
NG NG
NG NG
NG NG
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