What is this switch for?
84SE-EGI helpy-helperton
Joined: Oct 2002
Posts: 3,584
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From: Phoenix, AZ
Throttle Position Sensor, aka TPS. Normally, there's a bent metal bracket which mounts this in position that the plunger presses against a cam. As the throttle is increased, the cam pushing on the plunger, telling the ECU where the throttle is expected to be.
Joined: Mar 2001
Posts: 31,835
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From: https://www2.mazda.com/en/100th/
the TPS basically runs the vacuum advance solenoids, shutter and air control valves, so if you don't have those, then you don't need the TPS.
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