None if you still have the 95 motor to get all of the sensors off of. The 97 is OBD2 (on board diagnostics) and the 95 has OBD1 same as the 92 harness is set up for.
So you would need all OBD 1 sensors for the 97 motor.
'87 YJ, 4.2L built and bored, 8.5" of lift, 8.8 rear, AX15/NP 231, Tom Woods drive shafts, Flat fenders, 12,000LB winch, Custom bumpers, Rattle can paint job. Never completed...