What are the reasons for an EFI car not starting?
2 Answers
Reasons for an EFI car not starting: 1. Dead battery or empty fuel tank; 2. Incorrect gear position or locked steering wheel; 3. Car circuit or electronic failure, such as damaged spark plugs, blown fuses, or fuel pump malfunction; 4. Fuel quality issues; 5. Low temperature causing decreased oil viscosity. An EFI car refers to a vehicle equipped with an electronic control fuel injection system, which is short for "Electronic Fuel Injection Engine." The electronic control fuel injection system uses micro integrated circuits to control the fuel injection amount based on various operating conditions of the car and engine, promoting complete fuel combustion in the engine and significantly reducing exhaust pollution.
That day my fuel-injected car suddenly wouldn’t start, which really stressed me out. At first, I thought it was a dead battery because there was only a clicking sound when trying to ignite, and the dashboard lights were flickering. Later, I checked and found that the battery terminals were loose—poor contact can affect starting. I also inspected the spark plugs; if they’re faulty, the spark won’t ignite the fuel, leaving the car immobile. Sometimes, the fuel pump fails, preventing gasoline from reaching the engine, or the fuel injectors get clogged and need cleaning. Recently, during cold weather, I also experienced insufficient battery power—older cars are prone to this issue. If this happens, avoid forcing ignition to prevent damaging components. It’s best to have it towed to a repair shop for inspection and check if the engine oil is low, as that can affect lubrication.
