Electrical TerminatorX Factory Gauges Help

HeatShield

New Member
Jun 7, 2020
6
0
1
21
Burke Va
So I'm almost finished with my TermX install in my 347 5 speed (1989 LX) but am supremely stumped with the wiring of factory gauges. I removed my entire engine harness however left the harness coming out of the drivers side firewall because from what I've read that's where the factory gauges' signals go. So I am going to connect my 2 oil pressure and coolant temp sensors to the factory wires, then to my c110 connector (black 8 Pin) but was wondering if there are any other wires I have to connect (since its only 1 wire for each gauge to my knowledge) for my gauges or entire dash to work. I am hesitant to chop up my old harness before I have confirmation (have searched far and wide of threads can cannnot find a wiring diagram for my year to save my life). Here are some pics of my project and the black (and grey) 8-pin connectors which I'm talking about. If anyone has any diagrams for my year's 8-pin connectors and/or knowledge about what the grey and black 8 pin connectors do I'd really appreciate it. Thanks for helping a newcomer!
117907583_932301377175372_7813591377577645277_n.jpg 117717497_312074293343493_8573978254707321080_n.jpg 117771558_350004613069193_4771602330423026337_n.jpg 117780531_753223532136486_5775850738290961123_n.jpg
P.S. advice on how to wire in AC with TerminatorX is appreciated (if not I'll just remove it but I thought I may as well ask)
 
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HeatShield

New Member
Jun 7, 2020
6
0
1
21
Burke Va
Got it thanks guys it ended up just being the one wire for each gauge (plus the green and yellow Tach wire coming out of the same 8 pin connector which I tee'd off of my msd tach output since removing factory harness gets rid of tach). TerminatorX feels like witchcraft, worked magic on my motor compared to my still well made chipped factory ecu (it barely compares to TermX).