I have a 2010 5.3 on 15 - 16 lb's of boost that i can't get timing on high rpm's
I been having trouble getting timing on high rpm's, I checked and see that above 5,000 rpm's it goes over 1.36 cyl air mass and thats when it drops to 0 degrees of timing.
What can i do to get timing above 1.36 cyl air mass? I'm pretty sure this is the problem.
This truck is on MAF open loop, 15 to 16 lb's of boost, boost cam, 3,800 circle d converter and 72 lb injectors.