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Diagnostic Procedure NCEC0160 1 RETIGHTEN GROUND SCREWS 1. Turn ignition switch “OFF”. SEF202X © GO TO 2. 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. SEF203X 4. Stop engine and reconnect mass air flow sensor harness connector. INFORMATION”, EC-SR-56. 7. Make sure diagnostic trouble code No. 0000 is displayed in Diagnostic Test Mode II. Yes or No Yes © Perform trouble diagnosis for DTC P0171. Refer to EC-SR-212. No © GO TO 3. Intake manifold Engine Air cleaner Mass air flow sensor DTC P0138 HEATED OXYGEN SENSOR 2 (REAR) (MAX. VOLTAGE MONITORING) SR20DE Diagnostic Procedure EC-191 |