*UPDATE*

Got the new unit in yesterday and got it installed. unit works as advertised! definitely got a bad unit from the last guy i bought it from. i can definitely tell a difference from the build quality. the unit is heavier, the wire loom looks cleaner and the switches actually make a click when you turn them. and the knobs on the new unit ARE connected to black switches.

i wired it the way the directions tell you to for an 89+ 7mgte and it did not work. I ended up having to wire it up the way the 3sgte says to do it. RED is the way that didn't work and GREEN is how I have it wired on the below instructions:

http://i1131.photobucket.com/albums/...seupfort14.jpg



current working setup is as follows:

Red wire - +B (black w/red stripe wire on ECU connector)

Black wire - Ground (anywhere to the chassis)

Yellow wire - IGF (Turquoise w/black stripe wire on ECU connector)

Green wire - NE (Blue wire on ECU connector)

White wire - E-Brake (white wire coming from E-Brake light switch)

I'd imagine it would go the same way for the 87-88 ECU just make sure you're tapping into the ignition and RPM signal wires (IGF and NE) respectively. 89+ 7MGTE guys, here is the way you wire this thing up! i hope this helps and works for anyone else who is trying to do this.

Thanks for posting. The pre89 and 89+ ECU connectors are quite different as far as both pinout and color code are concerned. '97-'88 would look like T-12 on that page but Y and G are reversed if Y = NE and G = IGf. R is correct for +B1.

EDIT: When in doubt refer to the manufacturer's diagram... http://www.cygnusx1.net/supra/Librar...aspx?S=FI&P=50 Confirms that the diagram they listed is not correct.

So, did you have the last unit correctly wired at any point? Just curious.

Yeah I had it wired in the configuration I have now and it didn't even work. The lights flickered at the right times when the ignition was supposed to cut but didn't work

Ok, thanks. Well, at least you've got it all running now. Did you have any luck returning the bogus unit?

the issued me a full refund, no questions asked, and didn't even ask for the unit back. i offered to ship it back but they didn't even want it so i kept it haha!