ya its a tps, and it just tells the computer how much the throttle is open so it can change the ignition timing and e-rave valves and such. but the other guy is right DO NOT toch it, dont take it off or lossen it at all. i work at a ski-doo dealership as a tech and ive seen people replace it and not calibrating so the computer said it was open 20% at idle (this is after he broght it in for a piton letting go) the computer would advance the timing causeing a **** load of detonation making a hole in the center of the piston.
