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6E1–255 X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION CUTS OUT, MISSES SYMPTOM DEFINITION: Step Action Value(s) Yes No 1 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 Check the ECM grounds to verify that they are clean Was a problem found? — Verify repair Go to Step 5 5 Monitor ”Long Term Fuel Trim” on the Tech 2. Is the ”Long Term Fuel Trim” in the negative range (rich — Go to Step 6 Go to Step 7 6 Check items that can cause the engine to run rich. Was a problem found? — Verify repair Go to Step 9 7 Is the long term fuel trim significantly in the positive — Go to Step 8 Go to Step 9 8 Check items that can cause the engine to run lean. Was a problem found? — Verify repair Go to Step 9 9 1. Check for incorrect idle speed. Ensure that the following conditions are present: D Engine fully warm. D Accessories are OFF. 2. Using a Tech 2, monitor the IAC position. Is the IAC position within the specified values? Between 5 and 50 counts Go to Step 11 Go to Step 10 10 1. Visually/physically inspect for the following conditions: D Restricted air intake system. Check for a D Check for objects blocking the IAC passage or D Check for a condition that causes a large Was a problem found? — Verify repair Go to Step 11 |