Meanings of the car engine P2189 Code are available from different sources and among all of the meanings, the right meaning is automobile manufacturer meaning. Form the car engine manual, you can know the meaning of the code. If you know how to check the car engine and how to fix the car engine problem, you can take steps for solving the car engine. Allow an automobile engineer to check and solve the car engine problem. The automobile engineer knows well how to do his duty and solve the car engine problem. If the real meaning of the code is not available, the general meaning of the code can be used.