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Some engine control units (ECUs) also control the throttle position by electronic throttle control (ETC) or "drive by wire" systems, and if that is done, the position sensor is used in a feedback loop to enable that control. [1] Related to the TPS are accelerator pedal sensors, which often include a wide open throttle (WOT) sensor. The ...
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]
Accelerate-by-wire or throttle-by-wire, [17] more commonly known as electronic throttle control, is a system that actuates vehicle propulsion without any mechanical connections, such as cables, from the accelerator pedal to the throttle valve of the engine or other propulsion systems. In electric vehicles, this system controls the electric ...
The TPS sensor along with the vehicle speed sensor are the two main inputs for most TCUs. Older transmissions use this to determine engine load, with the introduction of drive-by-wire technology, this is often a shared input between the ECU and TCU. The input is used to determine the optimum time and characteristics for a gear change according ...
Electronic throttle control, throttle position sensor fault or cruise control failure (see drive by wire) [11] Stuck throttle (unrelated to pedal position) [12] [13] Shorting of tin whiskers [14] [15] Diesel engine runaway: Diesel engine power is governed by the amount of fuel supplied. Excessive pressure in the crankcase can force mist of ...
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1997-1999 S20 B000 — 5-speed Honda Civic coupe EX; 1998 S40 (E5F and P4A may be casting codes) — 5-speed Honda Civic LX; 2003 YZC6 — 6-speed Acura CL Type-S; 2004-2007 ATC6 — 6-speed Honda Accord 3.0L; 2007-2008 SMJM — 5-speed Honda Fit; 2009-2014 SP4M — 5-speed Honda Fit; 2015-2017 S7A7 — 6-speed Honda Fit; Accord Sport
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related to: 2009 civic throttle position sensor wiring diagram for 1999 f 150 5 4 low pressure ac port