SENSOR
TSB Revision
MULTIPORT FUEL SYSTEM (MFI)
13A-9
MANIFOLD ABSOLUTE PRESSURE SENSOR
The manifold absolute pressure sensor is installed in the intake
manifold. Manifold absolute pressure sensor uses a piezo
resistive semiconductor to output the voltage according to man-
ifold absolute pressure to ECM. ECM uses this output voltage
to compensate fuel injection volume according to manifold
absolute pressure. Sensor properties are as shown in the fig-
ure.
.
INTAKE AIR TEMPERATURE SENSOR 2
Intake air temperature sensor 2 is installed in the intake mani-
fold. Intake air temperature sensor 2 detects intake air temper-
ature in the intake manifold through thermistor's resistance
change and outputs the voltage according to intake air temper-
ature in the intake manifold to ECM. ECM uses this output volt-
age to compensate fuel injection control. Sensor properties are
as shown in the figure.
AK602254AC
Pressure
Manifold absolute
pressure sensor
AK602206 AJ
5 V
0
307
5 V
Ground
Output voltage V
Pressure kPa (in.Hg)
Manifold absolute
pressure sensor
Power supply
Output signal
ECM
AK604260 AD
Intake air temperature sensor 2
Sensory part
(thermistor)