You have to have the power hooked up to it. You can not rely on the OBD2 port to power the gauge, plain and simple. Once you have the wiring hooked up to an accessory, ie one that turns on when the car is turned on and then powers off when the car is turned off. If you are removing the OBD2 plug when the gauge is active, you run a major risk of messing up the unit.
Make sure you have the power setup and connected to the additional wiring plug provided. And then you have to also REMOVE the red cap from the back of the unit. I left mine on and I got all kinds of security warnings, until I removed it and it functioned normally.
Once you start your car, it will take approx 5-10 seconds for the Gauge to power up, and you will see the two LEDs light up and the prompt on the main screen and then you be taken into the gauge and you can configure it from there.
As for the Analog stuff, there is a bunch of programming you have to do for it and you need to purchase one of Aeroforce's sender units to complete the setup. I personally just a run a seperate OP gauge along with my Boost gauge, Tranny Temp Gauge and my A/F Gauge ontop of the Aeroforce.
I hope that helps.
![]()