Since I dont really want 4-5 different guages in my car, I was thinking of making/buying a digital one which uses a LCD to report its status/reading. Since the o2 sensor simply sends a voltage based on the oxygen content of the exhaust. 0.45 V means u are running at 14.7:1 afr and anything less than .45 means ur running lean and anything greater than .45 means ur running rich. Now my question here is that cant we simply make a Analog to Digital converter that would monitor this (and possibly other sensors such as EGR Temp and IAT etc )and then display that on a small 2X16 LCD which can be mounted anywhere thereby making those big *** guages useless... anybody follow me on this? has this been attempted?