Take it off - it will make absolutely no measurable difference.
As for you problems do you have any dash warning lights ? The servo throttle is pretty tightly monitored as you'd expect and there's a dash warning light just for it IIRC.
As for the sensor in the rubber hose that's the Intake Air Temperature sensor.... the vehicle will run and drive with it disconnected but you'll get a check engine light.
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It seemed like a good idea at the time........
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