Index Isuzu Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross - service repair manual 1999-2002 year
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6E–514 6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS Detonation/Sparks Knock Symptoms
Step Action Value(s) Yes No 1 DEFINITION: Was the “On-Board Diagnostic (OBD) System Check” — Go to Step 2 Go to OBD System Check 2 1. Perform a bulletin search. correct the condition as instructed in the bulletin. Was a bulletin found that addresses the symptom? — Verify repair Go to Step 3 3 Was a visual/physical check performed? — Go to Step 4 Go to Visual/ Physical Check 4 If Tech 2 readings are normal (refer to Typical Scan Values) and there are no engine mechanical faults, fill Is detonation present? — Go to Step 5 Verify repair 5 1. Check the transmission range switch circuit. Use a Tech 2 and be sure the Tech 2 indicates that the 2. If a problem is found, diagnose and repair the transmission range switch as necessary (refer to Was a problem found? — Verify repair Go to Step 6 6 1. Check TCC operation. Refer to 4L30-E Transmission Diagnosis. 2. If a problem is found, repair as necessary. Was a problem found? — Verify repair Go to Step 7 7 1. Check for obvious overheating problems: D Low engine coolant. D Restricted air flow to radiator, or restricted D Correct coolant solution should be a 50/50 mix Engine Cooling. D EGR operation. Refer to DTC P0401. D ION sensing module fault. 2. If a problem is found, repair as necessary. Was a problem found? — Verify repair Go to Step 8 8 1. Ignition “OFF”. Is the action complete? — Go to Step 9 — 9 Check the ION sensing harness between the PCM Was a problem found? — Verify repair Go to Step 10 |