HKS Turbo Timer Wiring

[leeroy_25]

Guy\'s I have an old skool KS Turbo timer. See this link.
http://dta-motorsport.com/used/HKS_tt.jpg
Does anyone have this fitted to there motor and remember how to wire it up? I cannot find a wiring diagram.
Basically there is a white plug with 3 main ignitions wires (red, green , blue)which I have a plug on my FD3 for already from where the old timer came out. However the other timer had 3 other seperate smaller wires on another little plug wired up but the HKS unit only has two other wires coming from it.. Black and grey I think. I thought the black would be earth and the grey ignition live but it appears not to be the case. The unit all lighhts up when the car is on but when you switch of the ignition it turns off and doesn\'t let the car run on. Is the \'grey\' wire maybe constant live or is it something entirely different?

I have just found something saying the grey wire goes to the handbrake switch? does this mean the nit wil only work if the handbrake is on?

Please help.

Thank you
Lee

[leeroy_25]

Any help here guy\'s?

I have wired the handbrake switch up and the unit now stays on but the car engine turns off still?!

Thank you
Lee