I'm trying to troubleshoot an issue, does anyone have a link to the wiring diagram for a 2021 cforce 500? Thanks!

This issue can happen at any time it seems like. Here's what happens. I'll be cruising at any speed and suddenly the atv will just act like you've pushed the kill switch. The lights on the dash stay on but it immediately starts to bog down as if you've completely let off the gas. When this happens the efi fault (red light on dash) comes on. This whole thing only last half or 3/4s of a second. Just enough to slow you down from say 25 mph to 23 or 24 then the atv picks right back up where it left off and you're back up to speed. It'll sometimes do it once every 10 seconds, sometimes once every 30 seconds, sometimes not for 30 minutes. And then it'll stop and not do it for an hour sometimes. Makes me think of a short in wiring? Another thing, my fuel gauge doesn't seem accurate and my tank builds up pressure and "whooshes" when you Crack the cap. I've seen a tank pressure fix video on YouTube so maybe that'll fix that issue but I wondered if they were related. I drove around carefully with the gas cap off but it still did the intermittent efi fault. Any help is appreciated!