Philippines

A camshaft position sensor is an electronic device that does what it suggests — monitor the camshaft position and speed — and feeds that data to the vehicle’s engine control module (ECM). The ECM needs this data to control how much fuel enters the combustion chamber and ignition (spark) timing to ignite the fuel. When the airfuel mixture is ignited at precisely the right time, engine power and fuel economy increase, and tailpipe emissions decrease.
On modern auto-startauto-stop engines, the camshaft position sensor determines which cylinder is in its power stroke relative to the crankshaft position, delivering fuel and spark to start the engine when you step on the accelerator.


