TROUBLESHOOTING 6 – 7
4. Excessive Fuel Consumption
Step Action Value(s) Yes No
1 Was the air cleaner element clogged? — Clean or
replace the air
cleaner
element. Go to Step 2
2 Was the air leakage found from the air intake side of
the turbocharger?
— Repair or
replace the air
intake side of
the
turbocharger. Go to Step 3
3 Was the turbocharger working completely? —
Go to Step 4
Replace the
turbocharger
4 Was there the fuel leakage? — Repair or
replace the fuel
leakage part. Go to Step 5
5 Was the compression pressure OK? 3.0 MPa
(31.0 kg/cm
2
,
441 psi) at
200 rpm
Go to Step 6
Readjust the
valve clearance
or replace the
cylinder head
gasket or
cylinder liner or
piston or piston
ring or valve
and valve seat
6 Was the injection nozzle pressure or spray pattern
normal?
—
Go to Step 7
Replace the
injection nozzle
7 Are any DTC stored? — Go to indicated
DTC Solved
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