Supra Liftback L6-2997cc 3.0L DOHC MFI Twin-Turbo (1997)
Camshaft Position Sensor: Description and Operation
CIRCUIT DESCRIPTION
The camshaft position sensors (G1 and G2 signals) consist of a signal plate and a pick up coil. The G1, G2 signal plates each have one tooth on the
outer circumference and are mounted on the intake side of the cylinder head.
When the camshaft rotates, the protrusion on the signal plate 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.
The ECM detects the standard crankshaft angle based on the G1, G2 signals, detects the actual crankshaft angle and engine speed by the NE
signals.
