Astra L4-1.8L (2009)
Oxygen Sensor: Service Precautions
Heated Oxygen Sensor Resistance Learn Reset Caution
Caution: When replacing the HO2S perform the following:
*
A code clear with a scan tool, regardless of whether or not a DTC is set
*
HO2S heater resistance learn reset with a scan tool, where available
Perform the above in order to reset the HO2S resistance learned value and avoid possible HO2S failure.
