Questionmy car failed emission inspection and im trying to find out the meaning of the codes so i can repair the problem myself. If you could help me the codes are P0050, P0150, P0154 and P1167, and the answer you recently gave me about the check engine bulb was very helpful, i repaired it myself and i thank you .
AnswerP0050 indicates a problem with the bank 2 (front bank) upstream oxygen sensor heater circuit. Most frequently, this is caused by the sensor itself.
P0150 indicates a perceived open circuit in the bank 2 (front bank) upstream oxygen sensor signal circuit. Most frequently, this too is caused by the sensor itself.
P0154 indicates no activity in the bank 2 (front bank) oxygen sensor.
P1167 indicates that the ECM is no longer able to adjust the fuel mixture so that the bank 2 upstream oxygen sensor has the desired readings.
Depending on the year and model of the vehicle, there may also be reprograms available for this issue.
