I hace been atempting to tune my 95 burb. Its ecm 16197427 mask bnkm. I have the fuel set close enough to run, im using moates apu1 and tuner pro rt. When i had the truck idling in drive the ignition was around 15deg advanced (watching the data log) i started recording while trying to drive down the road and for whatever reason the ecm is pulling out all the timing and the truck is running horrible while trying to drive. The engine isnt knocking can the knock retard be limited to only a few degrees instead of all of it. Im really not worried about knock at all can this just be programmed out.