Quote Originally Posted by vt_maverick View Post
Does TPS = Throttle Position Sensor or Transmission Position Sensor? If the latter, the symptom is generally rough/hard shifting from 2nd into 3rd as well as incorrect gear display on the dash (Park lit up while you're driving for example).
If I recall correctly, in the past the TPS= Throttle Position Sensor, highly unlikely culprit. Perhaps the TMS=Transmission Mode Switch (aka Neutral Safety Switch according to some part mongers) is term you were looking for?