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Originally Posted by poppy400_0
im having a problem with my service engine light ,i hook up my obd 2 .to read the codes. it read sensor heater circuit malfunction (bank2 sensor2) question ! is this ths the thermostat ? or something else.i already replace the thermostat but it keeps reading what i mention up top, can anybody help me with this
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Your O2 sensors have heaters in them and it looks like one of the heaters has failed -- I would check the connectors to your oxygen sensors and if they are ok then you probably need to change out your after cat O2 sensor.
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