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EC-678 < DTC/CIRCUIT DIAGNOSIS > [VK56DE] P0133, P0153 A/F SENSOR 1 2. Turn ignition switch OFF and wait at least 10 seconds. of “A/F SEN1” in “DTC WORK SUPPORT” mode with CONSULT-III. 8. Touch “START”. If “COMPLETED” appears on CONSULT-III screen, go to step 10. If “COMPLETED” does not appear on CONSULT-III screen, go to the following step. 9. After perform the following procedure, “TESTING” will be displayed on the CONSULT-III screen. If “TESTING” is not displayed after 10 seconds, go to EC-601, "Inspection Procedure" . 10. Wait for approximately 20 seconds at idle under the condition that “TESTING” is displayed on the CON- SULT-III screen. 11. Check that “TESTING” changes to “COMPLETED”. If “TESTING” changed to “OUT OF CONDITION”, go to EC-601, "Inspection Procedure" 12. Check that “OK” is displayed after touching “SELF-DIAG RESULT”. If “NG” is displayed, go to . WITH GST 1. Start engine and warm it up to normal operating temperature. Check that the total percentage should be within ± 15%. If OK, go to the following step. If NG, check the following. • Intake air leakage • Exhaust gas leakage • Incorrect fuel pressure • Lack of fuel • Fuel injector • Incorrect PCV hose connection • PCV valve • Mass air flow sensor 4. Turn ignition switch OFF and wait at least 10 seconds. If the 1st trip DTC is displayed, go to . Diagnosis Procedure INFOID:0000000006244326 1. CHECK GROUND CONNECTIONS 1. Turn ignition switch OFF. 2. Loosen and retighten ground screws on the body. 2011 Pathfinder |