Mitsubishi Eclipse Workshop Manual page 121

FUEL
-
On-vehicle Inspection
of
MPI Components
13-57
D
o
BAROMETRIC PRESSURE SENSOR
flow
sensor connector
Equipment side
connector
t\,4
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Harness side
connector
Air
@
I
o
ECr537
0c760
Barometric pressure
[mmHg
(in.Hg)l
1391
(30)
ecrssr
Engine
control
unit
6FUr805
I
o
o
O
OPERATION
The barometric pressure sensor converts the barometric pressure into a voltage and inputs
it to
the
engine control
unit which then corrects the fuel injection
rate, etc.
based
or.r
the input
signal.
The 5V power in the engine control unit
is supplied
to the barometric pressure sensor. Through the
circuit in the sensor.
it
is grounded in the engine control
unit.
The barometric pressure sensor output voltage which
is
proportional
to
the
barometric
pressur€
(absolute pressure) is supplied to the engine control
unit.
O
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@
Mitsubirhi Motors Corporatlon
Apr. 1991
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