Edit: I located the 87 electrical manual (thanks FiatSlug87), so the the 2nd connector numbers below are different between 87-88)
https://drive.google.com/file/d/1XBkojfjOdkg7X9ittvYaL0bRUj6qKc0G/view
I'll be doing a separate build thread on this basket case 87 MJ, but I have a couple questions as to where 2 connectors go. I've been going through all the wiring from firewall back and pulling out all sorts of other peoples' "great ideas" to get back to stock wiring. I'll make my own choices on what to add without hacking up the factory harnesses, with a more modular approach.
Connector #1: C115 - "ECU to Instrument Panel" on p.77 (2.5) and p.80 (4.0) of the '87 electrical manual, as part of the "Engine Control Harness" diagram and "EEC to I/P" in the inline connector views on p.60. Where does this connect/ what does it connect to? I've been through the 88 electrical manual linked here (and now the 87 electrical manual as well). That answered everything else on I found going through the dash. C115 is pictured in a couple pages of exploded diagrams toward the end but no answer as to what it plugs to and where that is. I'd like the wire color/ pinout as well.
Connector #2: I think it's C251 Cruise control clutch C260 Cruise Control Dump Valve Switch. The brake switch at C250 C249 is there on the brake pedal lever, connected. If there was a clutch switch on the stamped steel bracket 1/2" aft of the clutch pedal lever, it's gone now. If it had one, it would function (edit): possibly as 1) a clutch start switch and 2) cruise interrupt. Did these things from 1987 even have a clutch start/ neutral safety switch? (edit): Looking at the starter diagrams on p.14 it doesn't look appear so. This MJ doesn't have cruise, so I think I can tuck it away until I get sick of not having cruise and collect everything to add it lol.
Thanks!