Hello. My 2.5 v6 has recently started to act up a bit, it will misfire quite badly, usually when accelerating heavily. Usually I can get away in first and second without a problem but it's when I put it under load in third, fourth or fifth that it starts doing it and generally only if I'm hard accelerating, if it starts doing it for example and I ease off the throttle it'll usually stop. Accompanying this issue is that I've lost several MPG of range, I used to get (up to a few months ago) around 450 miles on a full tank give or take but I had to refill on empty around the 380 miles mark the last time.
I've had a look at the usual suspects, air intake looks clean enough, no air leaks. Checked for DTC's using forscan and there aren't any.