FixVault
Home
›
Chevrolet
›
2006
›
Optra LS, Standard
›
Repair and Diagnosis
›
Engine Performance
›
System
›
Engine Controls - 1.8L (L79) - DTC P0016 To DTC P0420
›
DTC P0135 or P0141
›
Component Testing
Component Testing
Ignition OFF, disconnect the harness connector of the HO2S.
Test the HO2S heater resistance for 3-35 ohms.
If the resistance is out of the specified range, replace the HO2S.