Which device is responsible for synchronizing the spark plug firing sequence in a vehicle?

The device responsible for synchronizing the spark plug firing sequence in a vehicle is the camshaft sensor. This sensor plays a crucial role in the engine management system by monitoring the position and speed of the camshaft. The data it provides allows the engine control unit (ECU) to determine the precise timing for the ignition system, ensuring that the spark plugs fire in the correct order and at the appropriate time during the engine's operating cycle.

By accurately coordinating spark timing with the position of the pistons and valves, the camshaft sensor helps optimize engine performance, improve fuel efficiency, and reduce emissions. Its importance in controlling ignition timing is fundamental to the smooth operation of modern engines, making it vital for overall engine performance.