[WiggyB]

I know I may not have been the only one trying to get the boost setting to work on my P3 gauge. The instructions are old per the rep at P3 and instead of setting the boost setting to bst.6 you should use bst.5.

1. Hold both buttons till you see conf on the screen
2. Press the right button till you see the boost setting. If you are not set there keep pressing the right button till you are there.
3. Press the left button to cycle through till you get back around to bst.5.
4. Press and hold the right button till the screen goes blank.
5. Start the car and you should now be seeing readings on your screen. Mines started off at -16.8.
6. Just mash the gas and it should go to 0.

If you did this correctly you're set and should be good to go.