With the progress of the society the development of the car,car has become an indispensable part of our daily life,however as auto power providers in the automotive engine work plays an important role in the process.Engine testing maintenance is each car maintenance personnel essential technology.:the role of the engine combustion to produce heat energy into mechanical energy for cars,is carried out in accordance with the driver's intention to start the car,to drive the car in the car can maintain smooth,or acceleration,to ensure that the driver safety and vehicle speed requirements.So we should grasp the car engine.
关键词：The car engine power stable and secure