Mike's Workshop Manuals
: Service manuals for every vehicle
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.