Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la
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Throttle Position (TP) Sensor




The TP sensor is mounted on the side of the throttle body opposite the air control valve. The TP sensor senses the throttle valve angle and relays that information to the PCM. knowledge of the throttle angle is needed by the PCM in order to generate the required injector control signals, or pulses.