to the OP not to get off topic and you found your answer this is for DH

wth has this truck been ? 2002 Chevy SCSB LQ9 lots of mods nad have you given up on it? whats the future on it..

 

k heres what they do
hook the tech 2 up to the truck
check the ecm files numbers and enter them into a website of GM
if they dont match as to whats suspose to be on the truck
then your screwed.
it stores the numbers up to 10 times. every time the ecm was flashed.
it's also stored in the bcm. so you can swap ecm and it will still be found.
good luck

 

Please explain this more lowoh8. I'm not completely understanding this.

 

I broke the locker in the rear when I converted it to five lug. I got new rims, slicks, and I also got a rear end out of an 06 to swap out so my 15's will stop rubbing. If all goes well I will start getting it ready for the track after deer season. I moved to kirbyville back in may so I've just been to busy to mess with it. I've heard yours is running well.