Turbo nytro rough idle.

[Nitram]

Hey guys. So My 08 nytro mtx with mcx 270 kit has started to stumble a bit at idle. Also seems to be a bit harder to start than usual. And there is a hesitation immediately as you get onto the throttle. Top end power still seems great and no matter what speed your going once you stay in one spot with the throttle or at one speed it’s not stumbling. Only at idle and only hesitates for a split second when getting onto the throttle. A couple days ago I pulled up beside my buddy on the lake and when I came to a stop beside him the sled shut off as soon as I stopped. But all ways fires back up first thing. I don’t know where to start looking for problems. Plugs? Fuel pressures? Filters? Any help will be much appreciated

 

[kinger]

Sounds like a vacuum leak, I had similar on my apex and found a tiny pinhole in the small hoses behind the throttle bodies. I actually did not find it I replaced them all with new ones and while I did it, when I was pulling the old one off I stretched it enough to see the hole, it was under the hose. So I got lucky. Start with a good inspection you will probably have to remove the IC and look at the throttle body hoses individually and stretch them out to see if they all look normal. The IC could be popping off slightly as well so just removing and replacing may fix it. Good luck!