Ehh Bull

Does any body know the difference between the 93 94 ecu and the 97 ecu. i noticed the larger connector has 2 less pins and the smaller connector has 1 less pin on the 93 94. Can it be bypassed or hardwired to work? and what do the other pins connect. little help little help anybody. I hooked up a V&H powerpak and it wouldn't fire. Sounds as there is no ignition and it wouldn't power the fuel pump. help please!

anybody out there have experience with the v&h powerpak? What would be good combination and what is the definition of power range 1 2 3 4 & rev-limit 1 2 3 4 mean. I have a 97 yzf750r with 1994 yzf750sp motor with only 6500 original miles on it factorypro race jet kit& new emultion tubes on 38mm mikunis with K&N filter, Leo Vinci full exhaust and 520 accelerator 1 down front 2 up in the rear looking to clear up range between 3000-4500rpm range any ideas thx 4 your time guyz