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Results for “2020 Toyota Camry P0420”

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Matched detailsYear · 2020Make · ToyotaCode · P0420

OBD-II code1

P0420 — Catalyst System Efficiency Below Threshold (Bank 1)

The catalyst monitor determined that Bank 1 oxygen-storage performance was below its calibrated threshold. The code alone does not prove the converter is the original cause.

Generic code

System1

System

Emissions and exhaust

Emissions systems control combustion byproducts and fuel vapor while monitoring performance. A code reports what a monitor detected; it does not automatically name the part that caused the result.

System guide

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