I've rode all year with my vector gauge and it has been working perfectly for me.
-Temp light came on last trip out when things were getting hot and road running.
-High beam works fine
-I blew a grip warmer and code 81 came up so the codes are likely the same. I further tested this by testing the TORS system, which also threw the correct code. Further tested it by unplugging the oil level sensor, and the proper code came up also.
-low fuel also works clearly.
-Gas levels are identical, grip and thumb warmers are the same.
From my research, the ecu controls all that, and both the stock nytro gauge and the vector gauge have the exact same buttons. And with all this testing I did, I would say they are identical in function!