LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Chevrolet
>>
2002
>>
Tracker 2D Utility, RWD, Automatic
>>
Repair and Diagnosis
>>
Engine Performance
>>
System
>>
Engine Control System Self-Diagnostics - 2.0L
>>
Diagnostic Tests
>>
DTC P0420: Catalyst System Low Efficiency
>>
Conditions For Setting DTC
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
Conditions For Setting DTC
The high and low voltage swing of the HO2S 2 is similar to the high and low voltage swing of the HO2S 1.
The above conditions are present for 96 seconds.