the truck is still running. i tripped this code one cold night back in march. truck started hard which it never did before. got it started heading home took off from stop&it coughed hard at say 25mph, thouht just combo of cold&some of my homemade bio fuel(i'vbeen making&running for years now). i figured out the fuel was shutting off instantly but only momenterly. this contiued to happen untilend of june when it straightened it self out. but. this would happen most often when i was just slightly on the go pedel& sometimes when i was just creeping. it would happen at 55mph & lockup the back tires, scare the blank out of me. i believe the ecm went bad due to a bad voltage reg. in my altenator which took out a bunch of other elec.components. it went bad shortly after i got the truck 7 years ago. the truck has always kind of bogged off the line since i started putting on mods. it has a industrial ijection hotrod pump,150hp injectors hybrid hx40/35 turbo smarty tuner set on level7 quadzilla fuel box set on level3 k&n filter 4in turbo back cool dual mbrp exshast fass fuel 150 fuel system o,ringed head autometer gauges atd built trans w/tripledisc billit converter &input shaft. with all this i can only build 10psi of boost while brake torqueing it and it will NOT break the tires loose. on wet road no problem. i thought for the longest time i just had a stubborn traction control ecm. everyone i talk to said a smarty tuner would fix me up. gave nice power but same issues off the line. once i tripped this 602 code took it to dealer to reflash ecm. found out it had already been done on this truck & can only be done once on these ecm's. i now think its been bad since alt. went bad years ago. i'm going to write a new post about batteries & bad alts. but if someone has another fix for me PLEASE HELP!!! THANKS.