Couple updates/plan..
Got a factory 89 EVTM wiring diagram (finally!)
Got the full 89 harness (main, injector and O2) with A9L.
Coolant temp sensor wires are short, need to extend
TPS has to have the plug swapped to the 94 plug
EGR stuff gets taped back (smog and EGR removed)
EGR ports on back of head blanked using $2 worth of bolts from Lowes
EGR port on intake getting blocked using 351 fuel pump block off plate
Low oil level wire taped back (not used in Monster Miata swap pan)
Intake air temp wires reach stock location, which on a 94 intake has to be drilled (3/8" NPT)
Miata OEM temp sender goes in Fox location (with thread adapter) in the thermostat housing, that's also drill and tapped. Wiring independent of the Fox (wire to Miata factory gauge)
Oil pressure sender (using a VDO unit that works with the 95 dummy gauge, based off the NB dummy gauge conversion kit at Moss Motors) gets remote located, NPT to AN line, that also routes to Miata dash independent of Mustang harness
TFI, using the McCully racing relocation kit for the SN95.. so basically replicates the SN95 configuration, using SN95 distributor. TFI will be remote mounted with heat sink, hooks into SN95 distributor pigtail and Fox harness.
MSD 6AL gets wired in like they normally do
Starter wiring uses body/Miata wires, remote mount solenoid is gone (using SN95 starter)
Low pressure adjustable FPR goes away, running stock Miata fuel pump for EFI motor
Running alternator only (no PS, AC or Air pump). Cut the Alt bracket off below mounting points
Swapping the idler to a grooved unit. Going to try Gates 36230 which has same inner bore, mounted using either hacked down stock mount or maybe an aftermarket idler only if I can can't make it work.
So accessory belt will run Crank, Alt, Idler, water pump with factory tensioner.
I think that is it for now...