I have a 2004 f250 6.0 with flashpaq tuner, s&b intake, recently done blue spring upgrade...this is all I have done. Now the problem, I did the blue spring upgrade almost 2 weeks ago, no isseues before or immediately after. Yesterday 04/21 . Noticed a little rougher idle than normal but other than that no problems. When I had free time I hooked my flashpaq up to read codes and got P1102 (mass airflow sensor in range/lower than expected) P0263 (cylinder 1 contribution/balance fault) then today when I was driving to work (10 min drive) I noticed it was running rough and at a red light I basically lost all power, I may have made it to 5mph turning through the light. I pulled over put it in park and sat for 3 min, put in drive drove to work fine. Leaving work it was hard to Starr and had the rough idle, get one street away from my house and the truck completely shut off. After waiting 5 minutes and calling a buddy for a tow it started and limped home. I've been reading forum after forum for the issues and have so many mixed responses and help would be greatly appreciated.