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EC-212 < COMPONENT DIAGNOSIS > [VK56DE] P0420, P0430 THREE WAY CATALYST FUNCTION OK or NG OK >> GO TO 10. NG >> GO TO 7. 7. CHECK FUNCTION OF IGNITION COIL-II 1. Turn ignition switch OFF. 2. Disconnect spark plug and connect a known-good spark plug. 3. Crank engine for about 3 seconds, and recheck whether spark is generated between the spark plug and the grounded metal portion. OK or NG OK >> GO TO 8. NG >> Check ignition coil, power transistor and their circuits. Refer to . 8. CHECK SPARK PLUG Check the initial spark plug for fouling, etc. OK >> Replace malfunctioning spark plug(s) with standard type one(s). For spark plug type, refer to . NG >> 1. Repair or clean spark plug. 2. GO TO 9. 9. CHECK FUNCTION OF IGNITION COIL-III 1. Reconnect the initial spark plugs. 2. Crank engine for about three seconds, and recheck whether spark is generated between the spark plug and the grounded portion. OK or NG OK >> INSPECTION END NG >> Replace malfunctioning spark plug(s) with standard type one(s). For spark plug type, refer to 16, "Removal and Installation" . 10. CHECK FUEL INJECTOR 1. Turn ignition switch OFF. 2. Remove fuel injector assembly. EM-40, "Removal and Installation" Keep fuel hose and all fuel injectors connected to fuel injector gallery. 3. Disconnect all ignition coil harness connectors. 4. Reconnect all fuel injector harness connectors disconnected. 5. Turn ignition switch ON. Make sure fuel does not drip from fuel injector. OK or NG OK (Does not drip.)>>GO TO 11. NG (Drips.)>>Replace the fuel injector(s) from which fuel is dripping. 11. CHECK INTERMITTENT INCIDENT GI-35, "How to Check Terminal" and GI-38, "Intermittent Incident" Trouble is fixed.>>INSPECTION END Trouble is not fixed.>>Replace three way catalyst assembly. Spark should be generated. SEF156I Spark should be generated. |