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Power steering fluid pressure switch (739) Informs ECM when power steering servo pressure exceeds 17 bar. Used for idle speed compensation. Level monitor, engine oil (243) Informs ECM when oil level is low. Used for indication on Saab Information Display (SID). Level sensor, fuel (46) Informs ECM of current fuel level.
A throttle position sensor (TPS) is a sensor used to monitor the throttle body valve position for the ECU of an engine. The sensor is usually located on the butterfly spindle/shaft, so that it can directly monitor the position of the throttle. More advanced forms of the sensor are also used.
A fully open throttle would show a manifold pressure roughly equal to the ambient air pressure, i.e. full power; note that the maximum therefore changes with altitude unless the engine is equipped with a turbocharger or similar intake air pressure increasing system. As the throttle is closed, this pressure is reduced due to restricting the fuel ...
But just opening or closing the throttle valve by sending a new signal to the electric motor is an open loop condition and leads to inaccurate control. Thus, most, if not all, current ETC systems use closed loop feedback systems, such as PID control, whereby the ECU tells the throttle to open or close a certain amount. The throttle position ...
An engine operating at wide open throttle (WOT) on top of a very high mountain has a manifold pressure of about 50 kPa (essentially equal to the barometer at that high altitude). Condition 2: The same engine at sea level will achieve that same 50 kPa (7.25 psi, 14.7 inHG) of manifold pressure at less than (before reaching) WOT due to the higher ...
Basic charging pressure is mechanically adjusted on the actuators pushrod between the actuator and the waste gate. At to low basic charging pressure the engine doesn’t revs up as expected when the throttle is opened quickly. At to high basic charging pressure a negative adaptation occurs and maximum charging pressure cannot be achieved.
Engine crankcase pressure sensor; Exhaust gas temperature sensor; Fuel level sensor; Fuel pressure sensor; Knock sensor; Light sensor; MAP sensor; Mass airflow sensor; Oil level sensor; Oil pressure sensor; Omniview technology; Oxygen sensor (O 2) Parking sensor; Radar gun; Radar sensor; Speed sensor; Throttle position sensor; Tire pressure ...
In fuel injected engines, the throttle body is the part of the air intake system that controls the amount of air flowing into the engine, in response to driver accelerator pedal input in the main. The throttle body is usually located between the air filter box and the intake manifold, and it is usually attached to, or near, the mass airflow sensor.
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