I datalogged my car earlier today during a WOT run. I was looking at the 100% throttle section where I wound out 2nd and 3rd gear and saw that the Long Term Counts were green (lean). I was getting values anywhere from 132 - 136. Now, does this mean that I am running lean at that point? Or does this mean that I am too rich and the computer is trying to lean it out? Also, is there a way to relate these LT counts to AFR? What are the ideal values during WOT for maximum power?

 

you cannot relate the lt values to A/F ratio.

but what your seeing is the last lt blm the pcm recorded right before you went wot. if the blm are above 128 right before you go wot, the pcm should use cell 18 in wot but if it seel numbers below 128 before wot it will use cell 15, and its correction factor will be added to the pe tables. so if you car is programmed to run 13.0 to1 it will add fuel if its using cell 15. but it does not mean your running lean.

 

What table do I look at in Tunercat to see these cells that you are talking about?

 

you can see the cells on your data master scan.

 

I was talking about the cells that the computer actually reads from. Maybe you were too, but I dont' think so, I'm kinda new at this.

 

the cells operate under different paramiters like cell 6 you may see it when the car is above 1400 rpm and 35 kpa but if you go to 2000 rpm and 35 kpa you may see cell 8. hteres really no need to change the peramiters for the cells.

tunercat does not show the cells but you can change the paraniters of the cell if you know what your doing. in the blm rpm boundries table and blm map boundries table. those table work hand in hand