I have been working off and on (mostly off), on tuning my 2007 G5-GT. I originally had the car tuned by a local before I got my HPT and really got in to tuning. When he tuned it, he only changed the MAF as at the time, parametric VE were only topics of discussion.
I have now been working on tuning VE with the EQ<>VE application and have been able to get some results. The issue that I have is that as a new tuner I do not know what all of the table’s control. I have followed some guides to understand how to obtain my commanded AFR when adjusting VE, but I am not thrilled with the results. These guides recommend that you remove enrichment values from Open Loop EQ Ratios and make them a flat 1 across the board. After tuning to these values cold start then becomes an issue since these table are there specifically for cold start purposes. Putting these values back to stock after completing VE would then have an adverse effect on what I was able to obtain while tuning my VE so that is something I would think I would not want to do.
What would be the adverse effects of leaving the EQ Ratios stock when tuning VE? I know that they would be adding more fuel, but since I know this is a constant, it would be calculated in to my AFR error percent.
Attached is my tune after tuning VE, Config that I use for scanning and log with that tune installed after setting back to Closed Loop.