you will need 2 thin gauged wires( to different colors )
2 electrical push pins
1 of the supplied orange plugs that came with EFI
1 custom calculated PID file
Now assuming you have the gauge hooked up,Unplug the harness and gauge
insert the 2 wires into the harness plug the gauge back in
then run these 2 wires to a desired location and hook them into the orange plug and then into Aux 1 on the V2
Pin# 10 is 5 volt
pin# 4 is ground
Pending on the gauge pressure determines what Calc PID to use,As we can also use this setup to log lift pump pressures and basically what ever else you wanted
Ive included a excel spread sheet,If you look at the formulas ive built you just need to pick the pressure of the gauge you are useing and put that particular formula into your calc PID,I just used the sheet for verifying pressure to voltage and it worked for the 0-30 psi and the 0-100 psi i never tried the others but mathematically they should also work