I was tuning this 17 silverado, bone stock just E85. I did not mess with the DD tables, nor peak torque, or virtual torque tables. I zeroe'd out most spark modifiers (at least anything that would pull timing) and when I would command say ~23* at WOT (.6+ g/ cyl) it would NOT come anywhere near close that timing value. It would command around 16*. I logged all timing modifiers and none of them were pulling timing. 0 KR, all that good stuff. Now I have been tuning for a while now, bunch of gen 3 and gen 4 controllers (I am saying this to get past the usual discussion of "you sure there wasn't anything else pulling timing?"). So what I had to do, and am quite embarrassed to admit, i had to command approximately 29 degrees in the main timing table to get in the low 20s of commanded timing. This is a temporary solution for now. My question is, despite the vehicle being completely stock, is there a possibility that timing was being pulled due to me leaving the DD tables factory?
I have a very general sense of what needs to be done. Log Avg Pedal Pos vs ETC Position and they have to match, if they don't, then something will be done so they do match. I.E. if pedal pos is higher than ETC, then I am being limited (spark maybe? or just the throttle not opening all the way). This is the second time this happens to me, and it seems to be in 2016+ trucks so far. Am I missing something? maybe I should have increased the DD values and see if the timing went up to commanded. But if thats the case, why would commanding more timing (29*) bring the timing to low 20s? Shouldn't it still be at 16* no matter what if the torque demand tables had anything to do with the timing being pulled?
Hope I get some answers, I have NO logs saved unfortunately. pedal position and etc matched at wot, 99.6%.