the 4 wire.red for ignition +12v,orange for +12v battery,black for grounding and white for tacho input. The 2 wire socket for shifting light.Becoz it using led type be sure you connect this 2 wire correctly.Otherwise it won't light....
sorry for the mistake.......
Bro out there ... anybody can help me on this problem ??
When i boost my engine to 1bar ... after 4000rpm .. the exhaust got blow sound .... and the car can't go smooth ....