Last night I attempted an upgrade to 1.1.63 from 1.0.73, I double checked all the settings and everything seemed fine @ first. The car ran smooth and nice.
But reworking the VE table to get rid of stumbles while stationary while blipping the gas I was constantly noticing a stumble at ~2k RPM. Not matter what I did, add/decrease fuel, add/decrease timing the stumble would not go away.
So we went for a drive and found that around 2200RPM no matter what load is applied it seems like there is something pulling either fuel or timing drastically (IGN cut is my guess). I have no idea why. Everything in regards to ALS is disabled. No MAT retard is being used.
Any ideas?