I think I am figuring out what the problem is, sorry for the confusion. Awhile back, I took the instrument cluster out of one of my parts cars, and modded it to accept a Boost Gauge and a Voltmeter, here's a pic of the left side:
The Icon I am referring to is the CHECK icon (CEL). I also have a CHECK icon that is displayed on my tach, just under the needle midway between 1000 and 7500. I don't recall exactly, but I think I used a Tach from a Gen1A and installed this into a GEN1B cluster? I will do a bit more research to figure out what I did exactly, I don't recall ATM. I know I had to switch some stuff out to get the cluster working, there was some difference between the two, that could be how I ended up with two CEL's.... The weird thing is that one CEL lights up between the 1000 and 7500 once in awhile and the CEL on the warning light bar lights up at different times. The only code I am drawing is the stupid EGR code 16 though.