The car engine P202B Code tell about the car engine problem. For solving the car engine, the meaning of the code is important. Do not follow automobile meaning of this code for fixing the car engine problem. Do not follow wrong meaning or the meaning from the other car manufacturer. The car engine problem can be started due to several reasons and it is impossible to find the real reason of the car engine without proper verification. You need to know the symptoms and judges all of these to know the reason of the car engine problem. A test drive is suggested.