Duramax Fifth Generation: 2011-2016 (LML)
2015.5 LML GMC DENALI
So my MAF reads between 15.4 and 17.3 g/ps at idle and will only read up to about 280-320 g/ps. Fuel is capped because of air so that varies. Every thing worked before I installed a compound setup and head studs.
I have put a new MAF and humidity sensor in.
I have tested...