LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Lexus
>>
2016
>>
RX 450h F Sport
>>
Repair and Diagnosis
>>
Engine Performance
>>
System
>>
Engine Control System (Diagnostic Codes) (5 Of 8)
>>
SFI System
>>
DTC P0420: Catalyst System Efficiency Below Threshold (Bank 1); DTC P0430: Catalyst System Efficiency Below Threshold (Bank 2) [10/2015 - 07/2020]
>>
Typical Malfunction Thresholds
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
Typical Malfunction Thresholds
Oxygen Storage Capacity (OSC) of catalyst (Normalized)
Less than 1