You have the switches in the wrong holes. One is normally open and one is normally closed. Unplug the switch, use a 24mm or 15/16" wrench to unscrew from the trans. Inspect the threads, one is slightly longer than the other one and you may have damaged the switch body.
On an NB car, the switch with the SINGLE plastic connector goes to the upper hole.
On an NA, the long wire goes on the top. The short wire switch should have green wires. The original design used a red wire. The updated switch( green wire) is to help the "stuck in reverse" problem on 1.6 transmissions.
On VVT cars you must plug in all the switches, I don't know what the actual wireing issue is, but unplugging the switches costs horsepower. 90-2000 can unplug the switches.
dstevens and tynor like this
Advanced Autosports, the nations most complete Spec Miata shop
Author, Spec Miata Constructors Guide, version 1 and 2.0
Building Championship winning cars since 1995
4 time Central Division Spec Miata Champion car builder 2012-2013-2014-2017
Back to Back June Sprints Spec Miata 1-2 finishes 2016 and 2017
5 time June Sprints winner in Mazda's
6 Time Northern Conference Champion Car Builder
2014 SCCA Majors National point Champion car builder
2014 SCCA Runoffs winner, T4 (Bender)
2014 Central Division Champion, ITS (Wheeler)
2013 Thunderhill 25 hour winning crew chief
2007 June Sprints winner, (GT1, Mohrhauser)
Over 200 race wins and counting.