Hi, I'm about to fit a shift light to my STi3 and need to check the wiring. I'm looking for coil positive and coil negative to patch into, can anyone let me know which of the 3 wires going to the coil pack I need.

Cheers...

 

anyone able to help??

 

You will either have to check with a volt meter or get an ECU pinout diagram for the same year (STi is same as WRX and is the same as UK of same year) and take the feeds off the ecu..
Negatative you can probably take from a ground point or the battery negative as I believe the pulse is positive so any earth will do.

Simon