I'll assume this is an aftermarket mpem. These are hit or miss. Google aftermarket seadoo mpem, you'll see the schematics for those mpems. If not use Google images and you'll see the pinout. Just make sure you find the right one. For your future reference, Minnetonka4me is a member here who sells used parts and could have set you up so it would have been plug and play. I'm sure it would have come with a guarantee too.