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You didn't supply make/model/year and if it is drive by wire or cable operated, but can back probe the signal wire/pin at the throttle body. When the throttle is operated (by hand if cable operated, or with someone stepping on the pedal for DBW). You see a voltage change on your meter usually between 0<5 volts, if it stays at 5volts it is shorted to power.

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9y ago

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What is the voltage volts for the throttle position sensor and where does the voltage come from on a 94 potiac grand am?

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