RX 300 FWD V6-3.0L (1MZ-FE) (1999)
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Camshaft Position Sensor: Description and Operation
Variable Valve Timing (VVT) Sensor
VVT sensor (VV1 or VV2 signal) consist of a signal plate and pickup coil.
The VV1 or VV2 signal plate has 1 tooth on its outer circumference and is mounted on the intake camshafts.
When the camshafts rotate, the protrusion on the signal plate and the air gap on the pickup coil change, causing fluctuations in the magnetic field and
generating an electromotive force in the pickup coil. The actual camshaft angle is detected by the VVT sensor and it provides feedback to the ECM to
control the intake valve timing in response to during condition.
CAMSHAFT POSITION SENSOR
Camshaft position sensor (G22 signal) consist of a signal plate and pickup coil.
The G22 signal plate has one tooth, on its outer circumference and is mounted on the left bank camshafts. When the camshafts rotate, the protrusion on
the signal plate and the air gap on the pickup coil change, causing fluctuations in the magnetic field and generating an electromotive force in the pickup
coil.
The NE signal plate has 34 teeth and is mounted on the crankshaft. The NE signal sensor generates 34 signals for every engine revolution. The ECM
detects the standard crankshaft angle based on the G22 signal and the actual crankshaft angle and the engine speed by the NE signals.
