Service manual

Fuel Injection System 7
70
11-2 Intake manifold pressure sensor
Function:
Monitor absolute pressures (kPa) in the intake
manifolds; provide information about the engine
load.
Rang of pressures monitored: 10~115kPa
Principle:
Due to any change in the intake manifold’s pressures causing deformation of a pressure sensor’s diaphragm, the
piezo-resistance effect makes resistance changed and further developed to be signals (voltages) proportional to
pressures under a processor chip’s functions.
Characteristic data:
Measurement
Val ue
Unit
Min. Classic Max.
Range for the pressure test 10 115 kPa
Operating Temperature -40 125
C
Operating Voltage 4.75 5.0 5.25 V
Current for U
S
=5.0V 6.0 9.0 12.5 mA
Current of the output circuit -0.1 0.5 mA
Response Time 1.0 ms
Intake pressure sensor
Pressure sensor’s characteristic curve