|
|
11 CHECK HEATED OXYGEN SENSOR 1 Without CONSULT-II 1. Start engine and warm it up to normal operating temperature. SEC109D CAUTION: I Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a I Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor Thread Cleaner tool OK or NG OK © GO TO 12. NG © Replace malfunctioning heated oxygen sensor 1. 12 CHECK MASS AIR FLOW SENSOR With CONSULT-II Check mass air flow sensor signal in “DATA MONITOR” mode with CONSULT-II. 2.0 - 6.0 g·m/sec: at idling With GST Check mass air flow sensor signal in MODE 1 with GST. 2.0 - 6.0 g·m/sec: at idling OK or NG OK © GO TO 13. NG © Check connectors for rusted terminals or loose connections in the mass air flow sensor 13 CHECK SYMPTOM MATRIX CHART Check items on the rough idle symptom in “Symptom Matrix Chart”, EC-127. OK or NG OK © GO TO 14. NG © Repair or replace. 14 ERASE THE 1ST TRIP DTC Erase the 1st trip DTC from the ECM memory after performing the tests. Refer to EC-88. © GO TO 15. GI MA EM LC FE AT AX SU BR ST RS BT HA SC EL IDX DTC P0300 - P0306 MULTIPLE CYLINDER MISFIRE, NO. 1 - 6 CYLINDER MISFIRE Diagnostic Procedure (Cont’d) EC-309 |