The TPS in Jeep Grand Cherokee cars has an important working of regulating the air fuel ratio for better combustion. The Throttle Position Sensor constantly informs the fuel injection system of the throttle position with signals that the vehicle computer can use to adjust fuel rates with the power needed by an engine. This feedback loop happens a few times per a second making the acceleration, cruising, and deceleration processes rather seamless. Through the years, Jeep has used the Throttle Position Sensor of different types in the Grand Cherokee - the potentiometric, non-contact types such as Hall effect inductive, and magnetoresistive sensors. Unlike the older models which required direct touch, these new sensors measure changes in the magnetic field; this makes the new models more reliable and fast. Also, other related throttle accelerator pedal sensors such as WOT sensors, cooperate with the Throttle Position Sensor to enhance the overall efficiency of the engine as used in Electronic Throttle Control.
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