Quote Originally Posted by x11 nut View Post
Been chasing bouncing TPS voltage for months, a buddy that is an old timer GM Master tech told me to replace the temp sensor and it fixed it. Old temp sensor was still reading in the logs but it shares ground with TPS. Not sure it is the same as your issue as you have it going with more sensors.
Yes, the analog ground chasing can be a biatch :( My little cap bank can work on either, but mainly used on the 12v ign sw side.