The engine P281B Code is found in many car engine and it is important to know the meaning of the code. By the right meaning of the code, it becomes easier to solve the car engine problem and fix the car engine properly. Do not allow any wrong mening or automobile meaning for solving the car engine. You may get new problems in the car engine for the wrong meaning of the code. That is why, you should be careful and you must not try to solve the car engine problem with the wrong meaning. Read the car engine manual to know the meaning of the code.