FixVault
Home
›
Chevrolet
›
2008
›
Optra LS, Automatic
›
Repair and Diagnosis
›
Engine Performance
›
System
›
Engine Controls And Fuel - 1.6L
›
Diagnostic Information and Procedures
›
DTC P0420
›
Repair Procedures
Repair Procedures
Perform the
Diagnostic Repair Verification
after completing the diagnostic procedure.
Heated Oxygen Sensor 2 Replacement
Catalytic Converter Replacement (Gasoline Engine)
or
Catalytic Converter Replacement (Diesel Engine)