What are the reasons why a car with power cannot start?

[Edwin]

Car with power cannot start due to wrong gear selection, no fuel, or fuel pump failure. The reasons and corresponding solutions are introduced as follows: Wrong gear selection: If the gear is in D or R position, the engine cannot be started. Only when the gear is in P or N position can the engine be started. The solution is to shift the gear correctly, paying attention not to select the wrong gear. No fuel: Apart from a dead battery, the engine cannot be started if the car runs out of fuel. Usually, this happens because the engine was not turned off when exiting the vehicle, leading to fuel depletion and battery drain, making it impossible to start the car. The solution is to refuel with the appropriate grade of gasoline. Fuel pump failure: If the starter operates normally during ignition but the car does not start, the fuel line should be checked. The solution is, if the fuel pump is damaged and the pump diaphragm is slightly torn, to apply soap on the torn area, separate the torn diaphragm from the intact one by staggering the tears, and then reinstall it. If the tear is long, a piece of film or oilcloth can be cut into the shape of the diaphragm and placed between the diaphragms to hold the tear together.