2003 Neon Dieing

Working on my daughters 2003 Neon and when it warms up it will start to idle bad then die. It acts just like a newer GM before the computer relearns. Got a P0121 code and replaced the TPS & Map sensors. Changed the IAC, cam sensor and crank sensor reaching for straws. Unplugged the TPS and plugged another in and it fixed it until I mounted it to the throttle body then started dieing again. Removed the TPS from the throttle body and it started working . Put it back on and it starts dieing again.