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6E1–251 X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION Step No Yes Value(s) Action 15 1. Check items that can cause the engine to run rich. Refer to Diagnostic Aids in DTC P0172 Diagnostic Make any necessary repairs. 2. Perform the exhaust emission test. Does the vehicle pass the test? — System OK Go to Step 17 16 1. Check items that can cause the engine to run lean. Refer to Diagnostic Aids in DTC P0171. Make any necessary repairs. 2. Perform the exhaust emission test. Does the vehicle pass the test? — System OK Go to Step 17 17 Check the EGR system (refer to DTC P0401). Was a problem found? — Verify repair Go to Step 18 18 Check for the following engine mechanical problems. D Low compression D Leaking cylinder head gasket D Worn or incorrect camshaft D Sticking or leaking valves D Valve timing D Broken Valve springs Was a problem found? — Verify repair Go to Step 19 19 1. Review all the diagnostic procedures within this table. 2. If all procedures have been completed and no malfunctions have been found, review/inspect the D Visual/physical inspection D Tech 2 data D Freeze Frame data/Failure Records buffer D All electrical connections within a suspected Was a problem found? — Verify repair Contact Technical Assistance |