What is another name for the pulser coil?

The pulser coil is often referred to as the crank position sensor because it serves the function of monitoring the position and speed of the crankshaft in an engine. This information is critical for the engine management system to optimize ignition timing and fuel injection. The pulser coil generates an electrical signal based on the movement of the crankshaft, which is essential for the engine's operation.

In comparison, the other options represent different components of the ignition and fuel systems. The ignition coil is responsible for generating the high voltage needed to create a spark at the spark plugs. The distributor cap is a component of older ignition systems that directs the spark from the ignition coil to the correct cylinder. Meanwhile, the fuel sender is used to measure the fuel level in the tank and does not relate to the timing or position of the crankshaft. Each of these components plays a unique role in the vehicle's operation, but only the crank position sensor accurately describes the function of the pulser coil.