Why won't the car start immediately after being turned off?
1 Answers
It may be due to fuel system or power supply system malfunctions. Details are as follows: Fuel system malfunction: Some car owners frequently choose to add lower-grade gasoline to save costs. Using low-grade gasoline may lead to higher gum content in the fuel, which can clog the fuel lines, causing poor engine fuel supply and stalling. It is recommended to clean the engine's fuel lines, injectors, and other components, while also checking if the vehicle's fuel pump has any issues. Low fuel pressure: After the engine heats up, the high temperature causes fuel evaporation in the fuel lines, creating vapor lock. A fuel pressure gauge can be connected to the fuel line. If the fuel pressure is too high after starting the engine, the pressure regulator needs to be replaced. If the pressure is too low, clamp the return hose. If the fuel pressure then rises to the normal value, it indicates that the pressure regulator is damaged. Power supply system malfunction: Currently, the engine's ECU (Engine Control Unit) is extremely important. The driver's throttle commands are analyzed by the ECU to issue instructions to the engine system, such as the timing and duration of fuel injection, which require ECU calculations to execute. If the ECU malfunctions, it cannot send correct instructions to the engine, resulting in failure to start normally after stalling.
