Just trying to hook up my turbo timer. It has three wires neg,pos and ignition. I have correctly hooked them up but when turning car off turbo timer doesnt work. Ihave tryed earthing out ign wire then turbo timer comes on. I think maybe the ignition circuit may still have pos current when i turn vehicle off to acesoiries which makes tbo timer not work. if i turn car completely off then back on timer will come on. Any help would be most appreciated!