I have an 2002 Accord Coupe EX 2.3L and the tach won't rev past 2rpm. Engine is perfect, it is just the tach is behaving oddly. I am at idle at 200rpm(the first line on the tach) while it used to be at 800(slightly under 1000). The tachometer is very responsive everytime I touch the gas and moves up and down. It's just off and when I'm cruising at 80mph, it says I'm at 1500rpm. Any help on what is wrong with it? Bad connection? Tachometer gone bad? Any tips would be greatly appreciated.