2008 Tomberlin Emerge hall effect senor issue

[ojo]

I try to explain (as far as i know): the Ezgo ITS is a 2 wire sensor. Red + green wire to the switch, black + white to the sensor. This 2 wire sensor was your old one in the Tomberlin. But there was an additional small electronic board attached.
The new style sensor you now have, is a 3 wire sensor with the electronic inside and so it's different!
The whole accelerator assembly of the Tomberlin is an Ezgo part, except the sensor. The wiring of an Ezgo will be different also.

I guess the culprit is the wiring of your sensor or microswitch, we'll see.