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IS 350C Base
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Repair and Diagnosis
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Different car
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Section 12 (Engine Control System (Diagnostic Codes (P0190-P062F)))
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SFI System
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DTC P0420: Catalyst System Efficiency Below Threshold (Bank 1); DTC P0430: Catalyst System Efficiency Below Threshold (Bank 2) [08/2013 - ]
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Typical Malfunction Thresholds
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Typical Malfunction Thresholds
WARNING:
This page is about a different car, the 2015 Lexus IS 250C and 2014 Lexus IS 250C. However, it is still accessible from the selected car via links, so may be relevant.
Oxygen Storage Capacity (OSC) of catalyst
Less than 0.078 g