I make 12 lbs. I read the instructions and plugged it into the black label sensor on the zl1 lid and it turned right on and the light on the box on the harness lit green. I then plug it back into the red sensor on the zl1 lid and the light on the box turns red. The instructions say it is supposed to turn on at 9.1psi of boost. I made a post on fb with a video
https://m.facebook.com/groups/122431...59020107489988