Hello, i've been looking through my haynes manual (falling apart) and i can not find out which wire supplies power to the ecu, can anyone help me out? 1990 gtu, t2 converting, but cannot get a check engine light to show up, spark, or fuel (hard wired fuel) so... haha.. i need help, yeah. the car originally was tampered with an ignition switch, but i removed that a while ago since it was carbed, and didn't take note of where that switch connected to.... anyone has any idea, it would be greatly appreciated.

thanks.
ray

 

S5 wiring diagrams: http://s8.photobucket.com/albums/a47/S5_wiring/

The page you want: http://i8.photobucket.com/albums/a47...boIgnition.jpg

Constant power is the L/R wire from the ROOM fuse to pin 1A. Switched power (the important one) is the B/W wire from the Main Relay to pin 1B.

 

thanks x 1million nzconvertible!