Originally Posted by
E55Amg
After some digging, I have finally completed writing a V8 tune to my V6 computer. For the benefit of those that may come after me:
Find a same year V8 tune in the repository (I have a 99 S10 ZR2, so I found a 99 Suburban 5.7 - ensure the transmissions match). License it (2 credits).
Read the stock file from your vehicle, and license it as well (yes, 2 MORE credits).
You should then be able to write the V8 tune to your V6 vehicle. This may not ALWAYS work, but it worked for me successfully.
Consider which MAF you are using (the one from the V8 or keeping your V6 one), use that MAF calibration table.