X15 surging under load

[FueledUp]

Also not defending the person who tuned it. It’s not who I use and like I said in my original post, I’ve been told he’s a “less than ideal” tuner. Sell you a tune for however much money you have in your pocket is what I’ve been told. On the road for most of this week, I’ll pull apart the exhaust gas pressure sensor and clean everything out. Also need to see if the SCR was gutted as well. Thank you Rawze for taking a look at it for me