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Home › Toyota › 1998 › RAV4 EV › Repair and Diagnosis › Engine Performance › System › Engine Control System Tests W/Codes › Self-Diagnostic Tests › DTC P0420: Catalyst System Efficiency Below Threshold (CALIF. Emissions) › Notes

DTC P0420: Catalyst System Efficiency Below Threshold (CALIF. Emissions): Notes

NOTE: Sensor No. 1 refers to sensor closest to engine block. Sensor No. 2 refers to sensor furthest from engine block.
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