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...Technical Information Inlet Air Temperature (IAT) Sensor General IAT sensors sense the air temperature on the inlet side of the engine. The voltage signal, produced by the sensor, is passed to the ECU. The ECU evaluates the signal and influences the fuel injection timing and ignition t...

...Technical Information Knock Sensor General You can find the knock sensor mounted on the side \ of the engine block. It recognises knock or pinging under all engine operating conditions to avoid lack of performance....

...Technical Information Level control switch for engine oil General Oil level control switches are fitted in the oil sump. They records the minimum oil level and send a signal to the ECU when there is an engine oil shortage. The ECU activate the warning system, a warning light or...

...Technical Information Level switch for windshield washer General The windshield washer switch records the low washer fluid level. They prevent a failure through water shortage. Function A magnet fitted in a float sinks when the washer fluid level is dropping and...

...Throttle Potentiometer General The throttle potentiometer senses the opening angle of the throttle valve. It send the information to the ECU to assist in calculating the correct fuel injection. The throttle potentiometer is fitted at the throttle valve axle. Function...

...Throttle Valve Switch General A throttle valve switch records the position of the throttle valve. It is fitted to the throttle valve spindle and send the information about the position to the ECU to assist in the calculating the fuel injection. Function Inside the...

...Technical Information Transmission Sensor General Transmission sensors record the transmission speed. This information is needed by the ECU to adjust the shifting pressure and for the decision which gear must be chosen. Function There are two different type s of...

...Technical Information Vehicle Speed Sensor General Vehicle speed sensors record the driving speed. It is assembled on the transmission (e.g. VW/Audi) or on the rear axle(e.g. BMW). This information are needed for the speed indication, cruise control and torque convert er slip c...

...Technical Information Wheel Speed Sensor General Wheel speed sensor are fitted near the wheel hubs or differentials and records the wheels speed. They work with the anti -lock -brake system, traction control system and the GPS. In a combination of systems the anti -lock -b rake...

...Expansion valve General points The expansion valve is the point of separation between high pressure and low-pressure areas in the cooling cycle. It is mounted upstream from the evaporator. In order to achieve optimum cooling capacity in the evaporator, the flow of refrigerant is regulate...



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