on the throttle body theres a rod that runs through the throttle lever where the cable is wound, through the center of the intake butterfly, and comes out the back side. the sensor is positioned right on top of where that rod stops with 2 torx bolts, a gasket about an inch across and it is a 3 wire sensor. i believe it to be throtte position sens. and i dont know about ebay's rep on offbrand sensors that say they work....