I'm attempting to tune SD via VVE in my C6Z, but I can't seem to affect the fueling with even large changes to VVE. I've had no issue tuning MAF though. My tune (attached), has the MAF disabled. No matter what changes I make to the VVE (calculating coefficients too), there is no change in the fueling. The car was moderately modified, including third-party tune, when I bought it. Cam, LT, injectors... and now heads. I suspect there is some property in the cars tune that I can't find which is preventing me from affecting fueling via VVE.
Can anyone take a look in the tune, and let me know if there is anything set that would prevent changes to VVE from changing fueling? There seems to be something else in control of the fueling w/ the MAF disabled.
TIA