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2 CLEAR THE SELF-LEARNING DATA With CONSULT-II 1. Start engine and warm it up to normal operating temperature. SEF652Y 4. Run engine for at least 10 minutes at idle speed. Is the 1st trip DTC P0171 detected? Is it difficult to start engine? Without CONSULT-II 1. Start engine and warm it up to normal operating temperature. SEF995W 4. Stop engine and reconnect mass air flow sensor harness connector. Information”, EC-QG-44. 7. Make sure diagnostic trouble code No. 0000 is displayed in Diagnostic Test Mode II. Is the 1st trip DTC 0171 detected? Is it difficult to start engine? Yes or No Yes © Perform trouble diagnosis for DTC P0171. Refer to EC-QG-208. No © GO TO 3. DTC P0138 HEATED OXYGEN SENSOR 2 (REAR) (MAX. VOLTAGE MONITORING) QG16 I 18DE Diagnostic Procedure (Cont’d) EC-185 |