Appreciation post: That time my buddy's tune saved my motor on I-95
So about three years ago I was running a basic canned tuner on my 2014 3.5 EcoBoost. It felt fine but I never really pushed it. My buddy Mike told me for months to get a proper custom tune from a guy he knew in Orlando. I kept saying it wasn't worth the 400 bucks. Well last month I was merging onto I-95 near Daytona and the truck started pulling timing hard and surging. I limped it to Mike's shop and he hooked up his laptop. The canned tune had the fueling way off for the summer heat here in Florida. We loaded up his guy's custom tune and the difference is night and day. No more surging and it actually runs cooler now. Has anyone else had a canned tune almost wreck their motor in hot weather?