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FUEL SYSTEM - Sensors
14-7
SENSORS
AIR FLOW SENSOR (AFS)
The air flow sensor
(AFS) is
the sensor
that
measures
the amount
of
inta~e
air and
is
mounted
on
the
air cleaner.
The AFS uses the
Karman
~ortex
phenomenon
to
detect
the
amount of
intake
air
passing
the air cleaner
element
and
inputs
it as a
signal for
the
amount of intake
air to
the erlQine
~ontrol
unit.
The erlQine
control unit
uses this signal
for
the
amount
of
inta~e
air
and the
engine
speed
(rpm)
signal
(crank angle
sensor signal)
to calculate
and
determine
the bIlsic injector
drive
time.
An intake
air temperature
sensor and barometric
pressure
sensor
are
attached
to
tha AFS.
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6FUU492
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