Unplug the red tubing connector on the engine, turn on the ignition switch to the instrument light (the engine does not run), observe whether the oil outflow.
 
    The engine ignition high voltage line unplugged one, with the old spark plug into the spark plug cap, start the engine to observe whether the phenomenon of high voltage flashover.
 
    And then check the automatic gear, when the gear is not as well as N (empty) block and P (parking) block, the automatic car can not start; the second step to check the oil table, the tank has no oil Can not start, in addition, if the fuel tank is very small, the vehicle and parked on the ramp, a small amount of remaining oil accumulation in the tank corner, resulting in gasoline pump can not contact with the oil, will cause can not start.
 
    If the gear and oil table display are normal, it is necessary to check whether the battery loss of electricity, through the battery on the electric eye to check the charging situation and quality status, green that work properly, black that loss of power, white battery damage needs to be replaced
 
    If the battery is also displayed properly, it should be a comprehensive inspection of the fuel supply system, with a dry cloth or cotton mats in the engine near the red tubing joints, the red tubing connector unplugged, open the ignition switch to the instrument light (start Running), observe whether the oil outflow. There is oil out of the fuel system is no problem, no oil is to continue to check the pump.
 
    After eliminating the possibility of failure of the fuel supply system, the ignition system should be checked, the engine ignition high voltage line unplugged one, with the old spark plug or other pen-shaped metal rods inserted into the spark plug cap, the spark plug or metal rod close Start the engine metal parts, start the engine to observe whether the phenomenon of high-voltage flash, such as flashing proof of the ignition system is normal, such as no flash fire should check the spark plug, high-voltage line of the working state.
 
    If the ignition system is also proven to work properly, then the final should check whether the collision off the oil protection switch is activated, the carnival collision protection off the oil switch in the driver's lower left corner.