F20C k-pro no temp gauge

[SteadFast]

I've seen this a few times from others, but have not found a way to fix it. I have a f20c in a vintage BMW, and am using the s2000 gauge cluster. Everything works great, except the cluster just shows one bar for the engine coolant temp gauge. When I hook my laptop up, k-pro is seeing the correct ECT, but the gauge is not. Thoughts?

[Spunkster]

This only works properly in an S2000 with our built-in adapter harness which is custom made for this to work. In another application you may not be able to get this to work properly.