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EC-430 [QG (WITH EURO-OBD)] DTC P1144, P1164 HO2S1 (A/T MODELS) 3. CLEAR THE SELF-LEARNING DATA With CONSULT-II 1. Start engine and warm it up to normal operating temperature. 2. Select “SELF-LEARNING CONT” in “WORK SUPPORT” mode with CONSULT-II. 3. Clear the self-learning control coefficient by touching “CLEAR”. 4. Run engine for at least 10 minutes at idle speed. Without CONSULT-II 1. Start engine and warm it up to normal operating temperature. 2. Turn ignition switch “OFF”. 3. Disconnect mass air flow sensor harness connector, and restart 4. Stop engine and reconnect mass air flow sensor harness con- 5. Make sure that DTC P0102 is displayed. 6. Erase the DTC memory. Refer to EMISSION-RELATED DIAGNOSTIC INFORMATION" . 7. Make sure that DTC P0000 is displayed. 8. Run engine for at least 10 minutes at idle speed. Yes or No Yes >> Perform trouble diagnosis for DTC P0172, P0175. Refer to . No >> GO TO 4. 4. CHECK HO2S1 CONNECTOR FOR WATER 1. Turn ignition switch “OFF”. 2. Disconnect heated oxygen sensor 1 harness connector. 3. Check connectors for water. OK or NG OK >> GO TO 5. NG >> Repair or replace harness or connectors. 5. CHECK HEATED OXYGEN SENSOR 1 HEATER Refer to EC-164, "Component Inspection" . OK or NG OK >> GO TO 6. NG >> Replace malfunctioning heated oxygen sensor 1. SEF215Z MBIB0096E Water should not exist. MBIB0092E |