The throttle position sensor bolts to the throttle blade shaft and relays throttle opening/closing information to the system ECU. The TPS is constructed of high resistance material with a "sensitive" rotator for accurate throttle position measurement. This is a Ford style TPS that has been modified to have a GM TPI style connector so that a Ford style throttle body can be used with FAST® EFI harness that use GM® style Weatherpak connectors. This product is not created or sold by Ford® or GM®.