Gauge cluster needles Options

[djrob90]

I've just added glow gauges to my celi, well pleased with 'em but I've got 2 problems. While I was installing the speedo gauge, I accidently pulled off the entire needle. I've put it back on of course, but now my speedo is reading approx 7 mph faster than what I'm actually going (according to my GPS unit). Also, I drove a fair way last night and my petrol needle hardly moved and now seems stuck. I think I might just have to pull the needle up a a bit, but I'm wondering is it self calibrating, in terms of will it go back to an accurate reading when I sort it out? And what can i do to get the speedo back to an accurate reading (so I don't get caught by one of the 6000 speed cameras in this stupid country!!!)
Cheers for your help!!!

[djrob90]

Fantastic, it worked!! I'm about a mile out but I can live with that!! Thanks again for the help Doggy. Once I loosened the needle on the petrol gauge it self calibrated, confirmed by me filling my tank from half and it raising itself all the way to the top!! Please get that made as a how too if possible, it's very useful!!