Working on a turbo Silverado and have another strange issue. Have it tuned in pretty good on MAF only in OL - I switch it over to CL with only STFTs enabled, and fueling goes way lean when in PE. STFTs are zeroing... This is the exact same tune with only B1501 - B1507 and B1513 and B1514 changed. I am using B1508, B1509 and B1510 to disable LTFTs because I know they effect PE.
Is there something else in the tune that can effect PE during CL differently than OL? Wanted to use STFTs to cover small changes in the weather, etc... but this isn't working. Tunes and logs attached (log 0085 is OL, 0086 is CL)