I know the P0140 is the oxygen sensor after the catalytic converter has to be replaced. I would like to know if the P0171 code was a result of the bad O2 sensor? Will replacing the O2 sensor solve the problem for code P0171?
dodge man
Favorite Answer
the po171 says it a fuel injector system too lean on it,and the po140 is a rear ho2s heater on it,that could cause the other codes also on it,id try replacing the 0-2 sensor first sense you know that has to be done,it may take care of the other code also,the 171 says it s fuel injector too lean on it,all you can do is try and replace it and see,that's the meaning for the codes when i looked them up for the year of the car,good luck,double check this though to make sure,i could be wrong on this one,good luck.
Bubba13
Just going by the codes, it reads;
po140= sensor circuit no activity found. Bank one, sensor 2
po171= fuel trim too rich. Bank one
at least that what the code says.