i got my sds all in and the car will start and everything but after a few revs up to 2500 i get a RPM err code on the display. i think it is because the magnets and the hall sensor are too far apart but i am not sure. also how do i go about getting the stock tack to work correctly , right now it just sits on 0 the whole time the car is running. other than those two probs my SDS is great.