The engine P0150 Code is an important thing and this code is related with the car engine problem. There are some reasons. The ECM displays the O2 sensor’s maximum and lowermost voltages. So, the P0150 code, the voltages is coming from the O2 sensor are not inside riders. Another reason of the problem can be the ECM senses a voltage problem and goes on the Check Engine Light. The problem of the engine can be started from finish leaks in front of the sensor cause an untrustworthy reading from the sensor. The symptom of the problem is engine Light will be illuminated.