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SYMPTOM Reference HARD/NO ST AR T/REST AR T (EXCP . HA) ENGINE ST ALL HESIT A TION/SURGING/FLA T SPOT SP ARK KNOCK/DET ONA TION LACK OF POWER/POOR ACCELERA TION HIGH IDLE/LOW IDLE ROUGH IDLE/HUNTING IDLING VIBRA TION SLOW/NO RETURN T O IDLE OVERHEA TS/W A TER TEMPERA TURE HIGH EXCESSIVE FUEL CONSUMPTION EXCESSIVE OIL CONSUMPTION BA TTER Y DEAD (UNDER CHARGE) Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA IVIS (Infiniti Vehicle Immobilizer System — 1 1 EC-82 or EL ABS/TCS control unit 2 2 2 2 2 1 - 6: The numbers refer to the order of inspection. CONSULT-II Reference Value in Data Monitor NHEC0042 Remarks: I Specification data are reference values. I Specification data are output/input values which are detected or supplied by the ECM at the connector. * Specification data may not be directly related to their components signals/values/operations. spite of the ignition timing not being adjusted to the specification data. This IGN TIMING monitors the data calculated by the ECM I If the real-time diagnosis results are NG and the on board diagnostic system results are OK when diagnosing the mass air flow sensor, first check to see if the fuel pump control circuit is normal. MONITOR ITEM CONDITION SPECIFICATION ENG SPEED I Tachometer: Connect I Run engine and compare tachometer indication with the CONSULT-II Almost the same speed as POS COUNT I Engine: Running 179 - 181 MAS A/F SE-B1 I Engine: After warming up I Air conditioner switch: “OFF” I Shift lever: “N” I No-load Idle 1.2 - 1.8V 2,500 rpm 1.6 - 2.2V COOLAN TEMP/S I Engine: After warming up More than 70°C (158°F) GI MA EM LC FE AT AX SU BR ST RS BT HA SC EL IDX TROUBLE DIAGNOSIS — GENERAL DESCRIPTION Symptom Matrix Chart (Cont’d) EC-127 |