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trying to find out if hp tuners supports 03 vin"y" seville 4.6l northstar

the interface will allow me to scan and read data from the vehicle however it says" no interface" when I try to write entire to vehicle any help here would be greatly appreciated.

yes it does recognize it by making a connection tone.

for some reason I can not get my mpvi2 to resync so I can write to my vehicle any help would be greatly appreciated.

ok so I have purchased credits for tune and I have made changes to my original file but when I try to write to the vehicle it says I have no license. i'm new to this and can't figure out what or how...

when I try to browse my files it has website underlined right beside where it says on your computer when I browse them my file is not in there because I don't know how to get my read file into there...

I still can't get to be able to post if I can figure it out I will post it up for you.

I can

what tab is the advanced option under all I see is advanced settings

thank you but all I can do is copy from my computer file. I am running stock injectors gm number 25317628 at 58 to 65 psi with adjustable fuel pressure regulator. running a 102mm throttle body along...

really need some help here I purchased the tuner hoping to be able to be able to help out with making my truck better. I did a ls swap into it a year ago with a 4.8 and a 4l80e trans sent the comp....