BLM and INT are LTFT and STFT. The OBDII standardization of terms changed GM's wording into "Everyone" terminology. As long as you're within about 10% in total correction (BLM +INT) you're in the...

Yes, there are many ways to get this done. I learned tuning before EFI and sometimes I still rely heavily on how the dang thing drives. Maybe it's a dead art but when the ecm is trying to be...

I will sometimes lock the BLM and INT at 128 then tune for the way the car feels and the readings on the O2. With all the corrections locked a lean engine will show up very quickly and a rich...

You should be tuning to achieve BLM as close to 128 as possible. The sensors, computer, and algorithm that determine air density and required fuel are not perfect. The INT is expected to make up...