Index Isuzu Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross - service repair manual 1999-2002 year
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6E2–511 RODEO 6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS Rough, Unstable, or Incorrect Idle, Stalling Symptom
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 Was the “Electric Throttle Control (ETC) System — Go to Step 3 Go to ETC System Check 3 1. Perform a bulletin search. correct the condition as instructed in the bulletin. Was a bulletin found that addresses the symptom? — Go to Step 14 Go to Step 4 4 Was a visual/physical check performed? — Go to Step 5 Go to Visual/ Physical Check 5 1. Check the PCM grounds for cleanliness, tightness and proper routing. Refer to the PCM wiring Electrical Diagnosis. 2. If a problem is found, repair as necessary. Was a problem found? — Verify repair Go to Step 6 6 Observe the long term fuel trim on the Tech 2. Is the long term fuel trim significantly in the negative — Go to Step 7 Go to Step 8 7 1. Check items that can cause the engine to run rich. Refer to Diagnostic Aids in DTC P0172 Diagnostic Support. 2. If a problem is found, repair as necessary. Was a problem found? — Verify repair Go to Step 10 8 Is the long term fuel trim significantly in the positive — Go to Step 9 Go to Step 10 9 1. Check items that can cause the engine to run lean. Refer to Diagnostic Aids in DTC P0171 Diagnostic Support. 2. If a problem is found, repair as necessary. Was a problem found? — Verify repair Go to Step 10 10 1. Check for incorrect idle speed. Ensure that the following conditions are present: D The engine is fully warm. D The accessories are “OFF”. 2. Using a Tech 2, monitor the Engine Speed. Is the Engine Speed within the specified values? Desired Idle Speed Go to Step 12 Go to Step 11 |