Camshaft Position Sensor: Description and Operation

CAMSHAFT POSITION SENSOR DESCRIPTION AND OPERATION

Camshaft position sensors (G1 and G2 signals) are mounted on the intake side of the cylinder head and the crankshaft position sensor (NE signal) is mounted on the oil pump body. These sensors consist of a timing rotor and pick up coil.
The G1, G2 timing rotors have 1 tooth each on their outer circumference and are mounted on the intake camshaft.
When the intake camshaft rotates, the protrusion on the timing rotors and the air gap on the pick up coil change, causing fluctuations in the magnetic field and generating an electromotive force in the pick up coil.