This FAST throttle position sensor adapter converts early-design/TPI/Weatherpack TPS connectors to later Metripack/GM LS-series harness connectors used by EZ 2.0 systems. The market description notes the TPS senses throttle blade position via a rotator and relays that input to the ECU; this adapter preserves that function while enabling compatibility between older throttle bodies and modern harness standards.
FAST Adapter Early TPS