Isuzu 2000 Trooper Workshop Manual page 1131

6E–262
TROOPER 6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
DTC P0300 – Engine Misfire Detected (Cont'd)
Step
17 1. Perform the "Injector Coil/Balance Test."
2. If a problem is found, replace faulty injector(s) as
necessary.
Did any of the injectors require replacement?
18 1. Check for an engine mechanical problem. Refer to
Engine Mechanical Diagnosis to diagnose the
following conditions:
D
A faulty or incorrect camshaft
D
Leaking or sticky valves or rings
D
Excessive valve deposits
D
Weak valve springs
D
Incorrect valve timing
D
A leaking head gasket
D
A loose or broken motor mount
2. If a problem is found, repair as necessary.
Was a basic engine mechanical problem found and
repaired?
19 1. Check for a transmission TCC problem. Refer to
4L30-E Automatic Transmission Diagnosis .
2. If a problem is found, repair the transmission as
necessary.
Transmission Unit Repair .
Was a transmission problem found and repaired?
20 Replace the MAF sensor.
Is the action complete?
Action
Refer to 4L30-E Automatic
Value(s) Yes
— Verify repair
— Verify repair
— Verify repair
— Verify repair
No
Go to Step 18
Go to Step 19
Go to Step 20
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