Quote Originally Posted by 1project2many View Post
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 mixture is easily seen on the O2 sensor. Your feedback from the vehicle is much less damped that way and it can help you if you're having troubles due to cam behavior.
I am getting the impression there are quite a few different ways to get this done. Sadly as I mentioned before I "feel" like I nailed the upper VE table, but the lower one is still a mess. It drives OK but I have a slight shudder around 1600. I was hoping there was some fine tuning that could be done in just that area. Also thinking that any long term fuel trim variance could lead to poor gas mileage. Just trying to nail it. I have friends that have had good drivability success tuning with a wide band but realistically the car's that drive the best are tuned by narrow band using a wide band only to check wot.