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Old 11-09-2013, 10:50 PM   #11
7MGTReeds
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*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:





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.
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Old 11-10-2013, 04:42 AM   #12
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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.
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Last edited by cre; 11-10-2013 at 04:45 AM.
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Old 11-10-2013, 04:02 PM   #13
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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
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Old 11-10-2013, 07:11 PM   #14
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Ok, thanks. Well, at least you've got it all running now. Did you have any luck returning the bogus unit?
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Old 11-11-2013, 01:54 AM   #15
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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!
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