Isuzu 20LE - Was a Problem Found

DRIVEABILITY AND EMISSIONS 6E1-111
Engine Cranks But Will Not Run (Cont'd)
Step Action Value(s) Yes No
30
Check the CKP High circuit between the sensor and the
ECM for a short to ground or open circuit.
Was a problem found?
-
Verify Repair Go to Step 33
31
Replace the CKP position sensor.
Is there still a problem?
-
Go to Step 34
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32
Check the CKP Low circuit between the sensor and the
ECM for: an open circuit, a short to ground, or short to
voltage. Was the problem found?
-
Verify Repair Go to Step 33
33 Replace the EPROM or ECM. Note) Refer to 6E-243 - Verify Repair -
34
1. Test the fuel for contamination.
2. If a problem is found, clean the fuel system and correct
the contaminated fuel condition as necessary. Replace
the fuel filter and replace any injectors that are not
delivering fuel (see Injector Balance Test).
Was a problem found?
-
Verify repair Go to Step 35
35
Refer to Engine Mechanical Diagnosis to diagnose the
following conditions:
• Slipped camshaft drive belt.
• Leaking or sticky valves or rings.
• Excessive valve deposits.
• Loose or worn rocker arms.
• Weak valve springs.
• Leaking head gasket.
Is the action complete?
-
Verify repair
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