LEMON Manuals
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Nissan-Datsun
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2017
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Maxima S
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System (DTCS) (2 Of 4)
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DTC/Circuit Diagnosis
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DTC P0420, P0430: Three Way Catalyst Function
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DTC Description
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Possible Cause
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P0430
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Possible Cause: P0430
Three: way catalyst (manifold)
Exhaust tube
Intake air leakage
Fuel injector
Fuel injector leakage
Spark plug
Improper ignition timing
Harness or connectors (The sensor circuit is open or shorted.)
Fuel tank temperature sensor