Channel number of Volkswagen Pol0 engine mixer in 2005

According to this signal, ECU controls fuel injection quantity, ignition timing and idle speed control. Fault effect: low idle speed.

Volkswagen polo speed sensor channel number:

1, throttle position sensor

Function: The throttle position sensor monitors the throttle opening and determines the idle speed, full load and acceleration and deceleration, so as to implement the throttle opening state.

Various corresponding fuel injection quantity control. Fault impact: the idle speed is high and low, or the overspeed phenomenon is caused.

2. Intake valve pressure sensor

Function: The intake pressure sensor provides engine load information, that is, it is connected with the engine.

When measuring the pressure of the intake pipe, the intake air quantity entering the engine is indirectly measured, and then the intake air quantity is converted into an electrical signal through the internal circuit and provided to the computer. Fault effect: the engine is not easy to start, or the idle speed is unstable.

3. Air temperature sensor

Function: Provide air temperature information to correct fuel injection quantity and ignition timing. Fault effect: low idle speed and easy flameout.

4. Crankshaft angle sensor

Function: Provide information of speed and crankshaft phase, and provide reference points for fuel injection timing and ignition timing. Fault effect: the engine can't start or the engine suddenly shuts down after starting.

5. Coolant temperature sensor

Function: Monitor the temperature of engine coolant, convert it into voltage signal and send it to computer. ECU controls fuel injection, ignition timing and idle speed control according to this signal. Fault effect: low idle speed.