Camshaft Position Sensor (CMPS-B2)
Camshaft Position Sensor (CMPS) is a Hall effect sensor that detects the camshaft position by using a Hall element. It is related to the Crankshaft Position Sensor (CKPS) and detects the piston position of the each cylinder. The CMPS is installed on an engine head cover and uses a target wheel installed on the camshaft. This sensor has a Hall effect IC whose output voltage changes when magnetic field is created on the IC with current flow. When the teeth on the target wheel trigger the sensor, output voltage will reach 5V. If not, it will be 0V. The CMPS signal is sent to the engine Electronic Control Unit (ECU) and used when determining the ignition timing along with a CKPS signal. The CMPS makes Sequential Injection possible.