Can users of the AVC-R, explain the following.
In the etc screen, in Sensor Sel-

1. Relative1 Relative Boost Pressure Sensor
(Normal Range)
2. Relative2 Do not use
3. Absolute1 Do not use
4. Absolute2 Do not use

*Select [1. Relative1] when using the included Pressure Sensor

What is the differences between all four? Please be specific.
The manual does'nt go into detail.

 

I could not explain exactly, but I think they are different way to calculate the values of the pressure sensor. I was comparing the boost values with Relative1 option and the values the Power fc with the apex 3bar map sensor and it was 3psi off, so I played with it a little bit and left it on Absolute2 because it was the closest one.

I know its not what you where asking, but its my experience with this device.

Regards...