Take the black plug off the pedal assemble and stick a 5amp fuse in there (or anything to jump it out). That’s the starter interrupter. It’s possibke the clutch pedal switch is broke. Mine was when I did my 5spd swap. Spent a day trying to figure out why car wouldn’t swap.
The nuetral sensor circuit is jumped on the 5-spd cars and only used on the AoD cars . It’s part of the reverse harness for the t-5 and is just a looped wire
Edit: Pic of harness. The red/blue wire is the jumper nuetral safety.
The nuetral gear switch on top of the t5 and the clear plug on the clutch pedal is different and controls idle strategy. You want both hooked up or you’ll have a hanging idle