2015 GMC 5.3 timing issues

[tpawlish]

Hey guys, It's time to as for some help.
I have a 2015 GMC 5.3 and I've been having trouble getting any more than 18* WOT timing.
I have done a lot of LS tuning but this is my first time with DI
Thanks

[Russ K]

Zero out the Humidity Adder Dry spark table.

Russ Kemp

[tpawlish]

thanks I will give it a try

[tpawlish]

That Worked Great!

Thanks again