Electronic Control Throttle - Denso 4D56 Service Manual

E THA V E +B
2 G 2 G
Ω
k
30
20
10
7
5
3
2
1
0.7
0.5
0.3
0.2
-20
EFI Main Relay

8.6 Electronic Control Throttle

(1) Outline
• The suctioning of air is stopped through interlocking the intake throttle with the key switch in order to reduce engine vibration when
the vehicle is turned off.
Temperature
sensing
element
Heating
element
0 20 40 60 80 °C
Power Supply
+B
Airflow Meter
Air Thermometer
VG
IC
Heating
EVG
Element
Intake Air
Temperature Sensor
THA
E2
Intake Air
Temperature
sensor
Air Flow-VG Characteristic
5
4
3
VG
2
(V)
1
0
1
2 5 10 20 50 100 200
Air Flow (x10 -3 kg/s)
Engine ECU
Voltage Detection
5V
Power
Supply
Voltage Detection
Operation Section
Air
Q001260E
1 25
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