Page 2593 - Foton Workshop Manual - Sauvana

DIAGNOSIS-ENGINE CONTROL SYSTEM 62-541
P0105，P0106，P0107，P0108 - FAULT OF INTAKE PRESSURE

SENSOR

P0105-No change in signal of inlet pressure sensor
P0106-Unreasonable signal of inlet pressure sensor
P0107-Voltage of inlet pressure sensor signal circuit is too low 62
P0108-Voltage of inlet pressure sensor signal circuit is too high

General

1. Measuring the pressure in the intake manifold is the function of the intake pressure
sensor.
2. Electronic control unit of engine will take the difference value between the intake
manifold pressure and atmospheric pressure (a linear relationship with the engine
load) as the basis for determining the basic fuel injection quantity of fuel injector, to
help the engine under different load reach the optimal air-fuel ratio.
3. If electronic control unit of engine detects that the signal voltage of intake air
pressure sensor is outside the calibration normal range, the fault codewill appear.

Circuit Diagram

Engine ECU
E01
C99
Temperature Pressure
Sensor- signal Sensor+ signal
E01 E01 E01 E01
13 38 29 39

Br-L Y-W Y-Br W-G

1 2 3 4
Rt

Intake pressure/temperature sensor
E21

fuwx62001

Page 2593