i recently replaced myO2 sensor (down stream)??a new code comes up po141 on 2003 Mitsubishi Eclipse

is this an expensive fix can i still drive my car? i have smoke come out from the tail pipe and poor gas mileage.help!

1 answer
this code is related to the heater ircuit on b1 s2 o2 sensor you either got a bad sensor or you broke a heater signal wire. try another sensor if that doesn't work look for bad wire or connection