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Home › Nissan-Datsun › 1998 › Quest XE › Repair and Diagnosis › Engine Performance › System › Engine Controls - Tests W/Codes - Testing - 3.0 › Diagnostic Tests › DTC P0420: Three-Way Catalyst Function › Notes

DTC P0420: Three-Way Catalyst Function: Notes

NOTE: Perform OVERALL FUNCTION TEST. If operation is not as specified, go to DIAGNOSTIC PROCEDURE.
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