You can get a lot of info. I had the 101 in my 97 P2 and I still have the 100 in my 96 Eyra. Unless the B version changed, the water pressure was an add on analog gauge. My 101 has tach, speedo, clock, engine hrs, barometric pressure, programmable timers for aerator and recirc. Also a ” %efficiency ” that was supposed to let you know how well your running.
And a compass. Couple other buttons you’ll figure like lights, horn, etc.
If it turns out the computer seems to be not working there are some troubleshooting tips that you can fin in FAQ, to check. Cleaning connections is first. If it’s still inoperable you can get a replacement dash insert with analog and a touchpad from BC. I know they used to give you a $100 credit to return the old Super dash but they’ve gone through a lot of changes so you’d have to check. Good luck!