MSefi.com read only forum (Jan.15,2018)

I will be running a FAST throttle body on the BBC in my Chevelle, it uses a new style GM TPS with the 3 pin round connector. Can anyone point me to the pin out of this connector? FAST also supplied a converter cable to go to the flat 3 plug so if someone has that I could figure it out as well. Thanks for the help.

Ty

The easiest way to check a TPS is to unplug it and put an ohmmeter on its pins. Observe the resistance as the throttle opens and closes. Each pair of pins will behave differently:

The resistance between the VREF and ground pins will remain constant.
The resistance between the ground and signal pins will be low with the throttle closed and high with the throttle wide open.
The resistance between the VREF and signal pins will be high with the throttle closed and low with the throttle wide open.

Thanks Matt that was exactly what I was looking for.

Ty