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are there any custom os for the 12597120os?

so if it doesn't behave correctly could the original os be flashed back in?

i have a 2007 classic silverado with the 1mg ecm (12597120os) I'd like to convert to a 2005 12592618os. is all i'll need an 05 pedal and tac module? what else would i need? can i even flash the 05...

will you guys take a look at my tune? i'm only cuttin like 2.4x 60'. I'm runnin 275/60 15 mt et street radials now, i cut the same 60's with 285/60 16 street tires and the same thing with my 20's....

anyone? what to do with timing?

going to tune a 4.3 tomorrow...this will be my first non ls motor. what should i look for? what are you all adjusting? pretty well the same principal as my 5.3?

guys i can't figure this thing out at all...tried again today, got the sensor plugged in and then everything hooked up, turned on the laptap started logging, looked ok idling around 13.xx(i just put...

it doesn't run real close to the wires...but that can easily be fixed i guess...and yes it prolly has a bad connection on the lc1 wiring. i just kinda threw it on to try it out. i've been dyno...

PLEASE!!! Hooked the LC1 up to see if i could do an auto ve. if i post a log can you guys tell me if my wb looks to be working right and anything i need to do different. thanks

thank you

yellow A1+
white A1-
brown A2+
red 12v
black calibration...

blue...can that go on A2- ?

so after i unzip that file with the two files in it i should be able to read and edit the 6 speed allison...correct?

could i get these files to please?

so when do you need to mess with the high octane table?

Made the changes mitchell suggested to my own pick-up tonight. I still don't quite understand table B5908 and what table it adds timing to. What is the benefit to doing it this way instead of just...

me or the other guy?

Did my first tune the other day. It was a 2001 5.3 GMC Sierra...anyone have any suggestions or care to critique...really want to learn more

thanks...i had already checked out those links but didn't quite "get it"...thanks for the replies though

Hello everyone.

Received my V2 and lc1 last week. Gettin the feel for everything. Been doing TONS of reading on here...I really can't figure out how to hook up my wideband though...could someone...