hello from ok

[Josh1980]

im new to the ls swap world. tring to save a buck doing everything myself. im swaping an 83 gmc k20. my doner was an 2002 gmc yukon DBW flex. im keeping my th400. any sugestions on tunes would be greatly apprectiated. basicly stock with shorty headers. thank you

[dave w]

Gearhead-efi link for 2002 .bin files: https://www.gearhead-efi.com/Fuel-In...rPro-Bin-Files

[Josh1980]

thank you dave w. do you have a suggestion on one? should i get a manual trans either 4.8 or 6.0 and change the displacement?

[dave w]

The linked thread has a 5.3 with Manual flash, but it's "DRIVE BY CABLE" https://www.gearhead-efi.com/Fuel-In...l-Transmission

[Josh1980]

Ok thank you

[Josh1980]

could you explain checksum's to me please. when i try to save it says one or more checksums couldnt be updated. check checksum addressing, ect, for validity

[dave w]

could you explain checksum's to me please. when i try to save it says one or more checksums couldnt be updated. check checksum addressing, ect, for validity

I think the checksum patch needs to installed, .zip attached

Checksum.jpg

Checksum Master.jpg