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6 CHECK IGNITION SPARK 1. Disconnect ignition wire from spark plug. SEF282G OK or NG OK © GO TO 8. NG © GO TO 7. 7 CHECK IGNITION WIRES Refer to “Component Inspection”, EC-328. OK or NG OK © Check ignition coil, power transistor and their circuits. Refer to EC-590. NG © Replace. 8 CHECK INJECTOR 1. Turn ignition switch “OFF”. Keep fuel hose and all injectors connected to injector gallery. 3. Disconnect distributor harness connector. Make sure fuel does not drip from injector. OK or NG OK (Does not drip) © GO TO 9. NG (Drips) © Replace the injector(s) from which fuel is dripping. 9 CHECK INTERMITTENT INCIDENT Perform “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-146. Trouble is fixed © INSPECTION END Trouble is not fixed © Replace three way catalyst. GI MA EM LC FE CL MT AT AX SU BR ST RS BT HA SC EL IDX DTC P0420 THREE WAY CATALYST FUNCTION Diagnostic Procedure (Cont’d) EC-367 |