No no codes no nothing, had it in manual at about 100kmph on the highway clicked it to 5th and rolled on it to pass a semi truck, just got half way passed the truck and felt a thud, kinda felt like it came from the tranny, felt it from the floor, shook the truck pretty good, and right when it happened the truck died, pulled her over to the side of the highway and looked inunder her right away figured there would be oil and shrapnel on the ground and nothing, popped the hood and didn't notice anything g, tried to fire it back up and cranked over but wouldn't catch, then went back under the hood and started pulling dip sticks just to check, everything was good, got back in fired her up perfect and drive away, the tuner figured it was a tranny slip or something and increased my line pressure and it never happened again, went to a couple shops about it but no one could really figure it out, talked to a guy that tunes 6.7's and he said he's had it happen a few times to him on his personal truck and described the same senerio that I had when it happened so I don't know.