However, there are several ways to stop fuel from reaching the engine in case of a crash or other emergency:
- The inertia switch: When an impact sensor detects a sudden deceleration, the inertia switch shuts off the electrical circuit that powers the fuel pump, cutting off the flow of fuel to the engine.
- The fuel pump relay: In case of an accident or other emergency, the fuel pump relay can be disabled to cut off power supply to the fuel pump, stopping the flow of fuel.
- The fuel line: In some cases, the fuel line may be damaged or disconnected in an accident, preventing fuel from reaching the engine.
