i had a race shop put install a tachometer in my 1991 honda civic. but after about two months in has stopped working. it has a light on it and it has stopped working it comes on when the car is on the wired it so when the car starts the light comes on at night not the shift light, that one works fine. any ways i was wondering if u guys could help me with the wiring codes or if u could tell me how to wire it so it wil work again please i need some help bad.