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The only analog sensor in the system was the oxygen sensor. In other respects, it was a typical "feedback" carburetor system of the early-1980s, using a stepper motor to control fuel mixture and a two-stage "Sole-Vac" (which used a solenoid for one stage, and a vacuum motor for the other) to control idle speed. [6]
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 ...
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]
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.
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 shorter runners, open from 4800 rpm to redline at wide-open throttle, also provide a tuned resonance effect due to their length. The shorter runners are also opened at wide-open throttle below 3000 rpm to provide an intake path to each cylinder that is as free-flowing as possible. Applications: Dodge Neon R/T (2001–2004)U.S (1998-2004)Canada
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The tilt sensor can sense the vehicle being tilted (alerting to towing). Tilt sensors come in digital or mercury. A digital sensor is more accurate since it sets itself, allowing for the vehicle to be placed on a hill and not cause false triggers. A sound discriminator or glass breakage sensor senses only the sound of glass breaking.