Flux screening plate for Carn
position sensor
Flux screening plate for
crank angle sensor
Vane
6AF0010
Vane
6AF0003
ENGINE - Control System
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7
The shapes of the flux screening plates used in the cam position
sensor and crank angle sensor are as shown in the illustration at left.
Detection of the cam position and crank angle is the same as for the
conventional 4G93-S0HC engine, where the magnetic flux passing
through the Hall element inside the sensor unit is alternately
screened and allowed through by the vanes on the flux screening
plate.
TWIN OXYGEN SENSOR <Europe, Hong Kong and
Singapore>
There are sub catalysts in both the front and rear banks in the en-
gine.
In order to maintain the proper air/fuel ratio in both banks, there is an
oxygen sensor for each one before the catalyst of both banks to
enable feedback control of the air/fuel ratio for each bank separately.
Each oxygen sensor is the same as the conventional oxygen sensor
with heater.
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