pulled off the net: (disclaimer)
ZT2 Pin # for EVO 9
1 (red) – I tapped this into ECU pin # 47 wire (Battery)
2 (white) – don't use
3 (green) - wired this to ECU pin # 45 wire (tachometer)
4 (orange) – wired this to the Green Boost sensor wire
5 (white / blue) – not used yet, but I will wire the Alarm /
Light later
6 (yellow) – wired this to the Red Boost sensor wire
7 (Black) -- ECU pin # 46 wire (sensor earth)
8 (Sensor Ground) -- ECU pin # 49 wire (power ground)
9 – not used
10 (grey) -- ECU pin # 78 wire (TPS)
11 (brown) – wired this to the Black Boost sensor wire
12 – not used
MORE USEFULL pdf from zeitrnoix tho... magic of google chap
http://www.zeitronix.com/installation/ZT2instructions.pdf