After about two and a half weeks of screwing around, i finally got my 6.2L GMC running. Yesterday night, i got the injector pump off (it must of been replaced because it's a j code pump) and blew it out, as well as cleaned it off. While off, i also opened it 1/3 of a turn. I then put the IP in by itself, and turned it over. Fuel finally started coming out! I then installed the injector lines, and turned it over for awhile. Eventually, it started popping. I then plugged in the block heater, and put a hair dryer on the intake side of the heads. I waited for the battery to charge again, and after a bout 20 seconds, it fired right up!:D It took about three stalls before it would idle, but everything seem to go good. Today, i will put the intake back on, and some other various things back together. :D:D:D:D:D

Good job, man! I've been there (alot of people have) with not getting the 6.2L to start. It's a great feeling when you've got it right.