Find the meaning of the car engine P2101 Code and solve the problem according to the meaning. There are several codes set in the car engine and many meanings are found from various sources. You will allow only the meaning what is found from the car manufacturer. The manufacturer provides only the real meaning of the code and that is the best meaning and idea for solving the car engine. The car engine problem may be very serious and that is why, you should solve the car engine problem as fast as possible. You take help in this issue from an automobile engineer.