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First off I’m completely new here so I hope I’m going about this correctly and posting in the right spot. Ok so about 2 weeks ago I went and hit the triple nickel in Ohio (state rt 555) and on my way back I came out of the store and my fuel pump wouldn’t prime which has happened in the past but not for years after repairing the burnt fuse connection so I wiggled some wires and said a few prayers and got her to prime again but then it still didn’t want to start. Had to feed it some throttle to get it to do anything and still all it wanted to do was only barely stay running on 1 cylinder and I had to hold about half throttle just to do that. After letting it sit for another 10-15 minutes or so I went back out to try it again and voila magically it started right up and ran perfect for the 200 miles i had to ride to get home. Turned the bike off and restarted it with absolutely no trouble probably 5 or 6 times on the way home but now it hasn’t ran since, just wants to only run on one cylinder now and only with lots of throttle input to get it to do that. Smells kinda flooded like that raw fuel smell afterwards. Pretty sure All my grounds are good, I just went thru the ones under the tank and the harness recall has been done. Switched ECU’s also with no luck…. Any ideas? Seems like it almost has to be wiring related. ANY info/help will be GREATLY appreciated!

(I'm new here, apologies if this has been covered or in the wrong section... I searched, but 'ECU' might be too short to show up) So I need an ECU, I would prefer Non HISS, which countries apart from the states had non HISS ECU's? I have found a cheap-ish one from Holland, but I'm not sure if they are HISS. I have a 2006 US wiring harness & a 2002 AU, are other years compatible/interchangeable? Thanks in advance!