Hi all! Been working through the tune in my 02 Silverado. This is my work truck; basic 6.0, 862 heads, Summit cam (forget which; torque cam), shorty headers, 92mm throttle body on nnbs intake, NV4500 swapped.
I have a wideband in the truck, but it is not connected to my MPVI2. I am running 93 octane and stock high timing table in both tables right now.
I am having two issues: one where the truck is pulling max timing (currently set to 8*) any time it enters power enrichment. Pulling timing out of the timing table makes no change, and I am not hearing any spark knock. Seems like nothing I do has any effect.
The second issue is that, right around the 1500 rpm mark under mid throttle I actually can hear a small amount of spark knock. AFR is stoic. I have tried adding a little fuel and removing a degree of timing in that area, no change. The odd thing about this is that if I am running just on MAF or just on VE it does not happen, but when I have both enabled it does happen. Knock sensors do not pick up on it.
I've included my most recent tune and a driving log. Any assistance would be greatly appreciated!
00196_StockHighTimingTable.hpt
00196.hpl