The engine P1212 Code plays important for solving the car engine problem. You need to fix the car engine by the right process. When fuel economy was amplified, hurrying was extremely conceded, and the loss of engine vacuum led to a risky loss of decelerating support when the engine P1212 code system was in four-cylinder mode. In addition to these matters, while the company planned a hydraulically controlled system that could be relieved from within the car, the version they applied had to be manually different in the engine section using hand tools. Do not drive the car with the car engine problem. Fix the car engine as soon as possible.