Kubota D1803-CR-E4 - Atmosphere Pressure Sensor; Boost Pressure Sensor; Function of Atmosphere Pressure Sensor; Function of Boost Pressure Sensor

3.21 Boost pressure sensor
3.21.1 Outline of boost pressure sensor
The boost pressure sensor detects that pressure and
temperature of
intake air at the inlet of the intake
manifold.
3.21.2 Structure of boost pressure sensor
The boost pressure sensor is made up of a diaphragm
and connector and the like.
(1) Terminal signal (Pressure)
(2) T
erminal 5 V
(3) Terminal signal (Tempera-
ture)
(4) Terminal ground
(5) Pressure sensor
(6) T
erminal ground
(7) Terminal signal (Tempera-
ture)
(8) Terminal 5 V
(9) Terminal signal (Pressure)
3.21.3 Function of boost pressure sensor
The boost pressure sensor detects that pressure and
temperature
of
intake air at the inlet of the intake
manifold.
This sensor is a semiconductor type pressure sensor.
A silicon element in the sensor changes with pressure
fluctuations and converts pressure detected using the
piezo resistance effect to voltage.
The output voltage signal of the sensor is sent to the
engine ECU.
3.21.4 Specification of boost pressure
sensor
Operating voltage 5 V
Pressure characteristics
3.22 Atmosphere pressure sensor
3.22.1 Outline of atmosphere pressure
sensor
The atmosphere pressure sensor detects atmosphere
pressure.
3.22.2 Structure of atmosphere pressure
sensor
The atmosphere pressure sensor is installed in the
engine ECU.
(1) Atmosphere pressure sensor
3.22.3 Function of atmosphere pressure
sensor
The atmosphere pressure sensor detects atmosphere
pressure.
The output
signal of the sensor is sent to the engine
ECU.
4. ENGINE
MECHANISM
3. Fuel system
4-34
D1803-CR-E4,D1803-CR-TE4,D1803-CR-TIE4,V2403-CR-E4,V2403-CR-TE4,V2403-CR-TE4BG,V2403-CR-TIE4
KiSC issued 12, 2018 A