Cold Start Wire - Wiring Gurus pls.

[kuruptR]

Building a S-Chassis harness from scratch on my s13. The Ecu requires a cold start wire, 12v.(orange wire from dash harness) Would anyone know how to go about's wiring this.
Does this need a 12v when the car is on, or is it timed. Lets say when car gets warm the 12v signal drops to 0v.
If it is timed, what could i wire it to?

[kuruptR]

Just went in and tested my stock 240sx. Orange wire from the brown plug in the interior, cold start wire, gets 12 volts only when its turning over. So i will connect it to my starter signal.

[DJ 21o3]

Props for taking it into your own hands, hopefully I remember this when I get around to wiring my chassis this winter.