88 GT - ECM CODE 22

[JORAMA57]

Crazy idle and engine dies. Check engine light on and reading code 22, "Throttle Position Sensor".

What brand should I get and whom to buy it from?

So many choices and prices all over the board.

[Fierofool]

You could probably find one of the better brands at NAPA or AC Delco.  Echlin is usually carried by NAPA.  You might find Standard Ignition at both NAPA and AC Delco. 

Wierd idle---Didn't you just do some engine-out work?  It may not idle well until you've had it out on the road.  After disconnecting the ECM, it has to be taught everything all over again.