[Freude am Fahren]

I have a feeling the 1-6 indicator uses speed/rpm to figure out which gear it's in, which is why it only reads with the clutch out (as opposed to reverse, which must use the reverse switch). So maybe a final drive change? Or maybe differently sized front/rear tire diameter. Don't know why it would only effect 3rd, maybe just how ranges work out in the computer. Just spit-balling here.