My lbz has been acting up the last few weeks. It was breaking up in the upper rpms a few weeks ago, I fixed a leak at the filter housing with a housing delete kit. Then a week or so goes by and my truck doesn't want to rev much past 2k rpms. Sometimes if I stay on the throttle it'll rev up. Most of the time won't. While it's acting up I check rail vs desired pressure with my efilive and it seems to be on the money. I have no codes. What do you guys recommend. Btw the truck has a rail plug/fitting, full hsp kit, full exhaust, 66mm ddp turbo, ad165 lift pump, and a ddp tune.