I am wanting to either use a Raspberry pi and a touchscreen with realdash or a larger android radio/monitor. My question is are there ways to get other gauges to read that are not included in my obd2 port and factory ecu redouts? Like an true AFR gauge, A true boost gauge, and other things that are not capable in full effects with the factory ECU obd2 output? or would there be a better way for me to go about this.
To read your sensors directly, you need some sort of a IO box that reads the sensors and transmits the data to RealDash. SPLeinonen DashBox is one option.