Yesterday my truck would only move in idle. The pedal was non responsive. I turned it off then back on and was able to get some diesel to the engine but only for a second or two. The engine light came on and my Edge indicated a P1335 code which I believe is EGR related. I had my DPF removed 8 months ago and used the Extreme tune with dpf delete. A month ago I had the cat removed and went with a straight 4" MBRP pipe. Could this have caused the EGR issue?