My 2013 850i RSX runs and idles good and drives good until you shove the throttle past 3/4 to full throttle and it burps and farts and cuts in and out and as soon as you back off it back to 3/4 or less throttle it will run fine it just won't run properly wide open. Any ideas or suggestions? I have changed plugs and fuel filter and still no change. I was thinkin maybe clutches any ideas or solutions would be great thanks
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