Pressure sensor component description - GF07.04-P-6060V
ENGINE 272.942 in MODEL 171
ENGINE 272.963 in MODEL 171
Location
The pressure sensor is located at the top on the left cylinder head.
task
The pressure sensor detects the absolute pressure in the suction pipe. The intake manifold pressure is used to detect the air mass when starting the engine. When the engine has started, the signal from the hot film MAF sensor is monitored.
Function
The intake manifold pressure distorts a diaphragm which has an effect on the piezo resistor. This alters the resistance value of the piezo resistor and influences the output voltage, which is used as information regarding the intake manifold for the ME control unit.
Body