I have a 2009 Chevy Silverado CC, 5.3, 6 spd, 4x4 and put big tires on it. I tuned the trans using Bluecats tranny software which saved my life and now I am tuning the MAF. I have watched the Greg Banish Calibrated Success DVD a hundred times now and have a fairly clear understanding of what I am doing and what my results should be. I have done Gregs process of setting up the PIDs and histograms and found Bluecats EQ - VE software to use and I have the AFX O2 set to read in Lambda using Gregs formula from another posting.
One thing that is confusing to me is the variable Stoich settings in the PCM and how to tune for it. In Greg's example he says to use CMD HI RES/Stoich and I fould one that said to use 1/commanded EQ ratio. I am not sure which one to use because I do not know if the variable of the 1/EQ ratio is different than the one Greg suggests of CMD HI RES/Stoich.
Moving on to Lambda error I tried two different ways and both come up with a number but one seemed like a funny number. I used the PID of
100*([AUX.20121]-[USER.9004])/[USER.9004] and its reading seemed like the numbers were far to big to be a Lambda error like -15 to +15. The Method that seemed to give a more accurate reading was the PID [AUX.20121]/[USER.9004] which gave a Lambda type number of .80 to 1.10.
I guess my question is what should my Stoich be in the PID CMD HI RES/ Stoich or should I use the EQ ratio PID? Also, if the reading in the PID 100*([AUX.20121]-[USER.9004])/[USER.9004] is accurate how do I correlate that to make changes to my tune?
Thanks in advnace
Adam
GB calibrated Success Setup.cfg