[ChadB]

So I got my mpguino wired up, and the speed is reading pretty close, except for one problem. The speed doesn't register on the mpguino until I'm going 15 mph or faster. I'm thinking it's the type of speed sensor I have is an issue? I've noticed my speedo in the truck bounces around a little until I get over the same speed. I know there have been similar posts here, but to be honest I don't know much about building circuit boards and I didn't quite understand the posts I saw. Can anyone help me understand if there is a way to fix my problem? I don't see how I can ever get accurate readings if this thing thinks I'm sitting still under 15 mph.