MIL is for emission, engine and transmission faults.
When retrieving trouble codes, ignition is turned on with engine NOT running after plugging in code reader.
When erasing code, same condition for ignition switch applies.
The code reader should have a function for erasing trouble codes. Follow onscreen instructions when you select the erase code option.
P0138 = Secondary HO2S (Sensor 2) high voltage.
P0141 = Secondary HO2S (Sensor 2) heater circuit malfunction.
Most probably you need to replace the HO2S sensor.
Wednesday, February 23rd, 2011 AT 2:38 PM