i have a 2015 denali 6 speed with a magnason supercharger. the truck is surging, when traveling at say 120km\h it will accelerate on its own. cruise control or manual drive dosent matter. just wondering if anyone else has had this problem. of note the problem gets less severe as elevation increases which is very strange. I have included the tune
2015 DENALI RAJNI MAGNACHARGER,LT FINAL T3.hpt