1GGZE into GX71 wiring problems

[cute wee gem]

Hey guys

I've got a 1ggze in a GX71 Mark II but have a few issues

Firstly, the ISCV is wired into the ECU fine, but there is another wire (yellow w/ blue trace) which has been cut - where does this go? There is no noise coming from the ISCV at all and it is open all the time (idles high)

http://img17.imageshack.us/img17/4665/dscf5899d.jpg



Secondly, the tacho doesn't work - What I want to do is splice the yellow wire from the ECU and run it to the factory tacho. Problem is I have no idea where to run the wire for the tacho signal as I can't seem to find a GX71 wiring diagram


Thanks in advance.

[auto351]

Have you seen these drawings ?

http://www.supra.co.nz/1g.htm

that wire from the ISCV (yellow w/Blue trace) connects to switched power from the Main EFI relay.

This is for the GTE but what your looking for should be the same