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Air filter pressure sensor / air filter temperature sensor (4)
Air filter pressure and air filter temperature are mea- sured by a combined sensor placed above the air fil- ter.
The air filter pressure sensor measures absolute pres- sure, the sum of air filter pressure and atmospheric pressure. The sensor consists of a monitor that sends a signal to the control module when the pressure in the air filter becomes too high.
The air filter temperature sensor consists of a non-lin- ear resistor, where the resistance is dependant on the temperature of the resistor body. The resistance drops as temperature rises.