just put a AFE 4'turbo back dpf delete exhaust on my buddy's '10 lmm. We also install the ppe standard on it and put it on level 3. Now after i installed the tuner the CEL was on and had a 2455 code. I figured it was the dpf code. Drove it down the road and truck ran fine so we put it on level 2 and the tuner frozed up on installing tune. Tuner is supposed to take care of that.So we pulled the fuses it says to pull and then the tuner froze up vin #check. Any ideas on what to do. Also truck will not start now even with all the pulled fuses back in