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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 typical ETC system consists of three major components: (i) an accelerator pedal module (ideally with two or more independent sensors), (ii) a throttle valve that can be opened and closed by an electric motor (sometimes referred to as an electric or electronic throttle body (ETB)), and (iii) a powertrain or engine control module (PCM or ECM). [4]
The ECU then determines the throttle opening based on the accelerator pedal's position and inputs from other engine sensors such as the engine coolant temperature sensor. Throttle body showing throttle position sensor. The throttle cable attaches to the curved, black portion on the left.
Throttle body actuator (604) Contains throttle position sensor and throttle motor with associated reduction gear. The throttle body is spherical to improve the throttle area control with low loads. No mechanical limp-home function as with T7. Accelerator position sensor (379) Integrated in accelerator pedal bracket.
Determine throttle gate position by TPS sensor Processing and writing to log file signals from 2 additional inputs (e.g. Oxygen sensor can be connected) Power management (ability of some functions to work after ignition is switched off, for instance working off cooling fan or auto choke control)
Delco ECU used in General Motors vehicles built in 1996. An engine control unit (ECU), also called an engine control module (ECM), [1] is a device that controls various subsystems of an internal combustion engine.
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It is a one-to-one relationship with an offset of -100 kPa for boost pressure. Thus, a MAP sensor will always read 100 kPa more than a boost sensor measuring the same conditions. A MAP sensor will never display a negative reading because it is measuring absolute pressure, where zero is the total absence of pressure.
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