When you block your car with gas, the fumes in the tank grow compulsory into a container filled with stimulated charcoal. Also, on a warm day as the gas heats up and evaporates, those same smokes push into the container where they are kept. But the charcoal can only hold so much gas. At some point it has to be collapsed. The discharging process is named canister purge. The engine P1189 Code has real meaning and that meaning is perfect for solving the car engine’s problem. Thea real meaning of the code is related with the car and car manufacturer.