cant say which wire but its easy to find out, one wire will be 12v, one will be earth, one will be between 20-900mv, thats the one you want. you know its working coz when you cruise, your guage will swing lean-rich like a knight rider display.
cant say which wire but its easy to find out, one wire will be 12v, one will be earth, one will be between 20-900mv, thats the one you want. you know its working coz when you cruise, your guage will swing lean-rich like a knight rider display.