Does the flex fuel functionality gets lost when you go custom OS?
checked the flex fuel sensor its getting good signal to the ecu, voltages are alright, changed the sensor to see if it went bad, still i get 0% alcohol and i noticed it was adding ignition from the flex fuel table with pure gasoline before, now on E and no compensation.
That would be news to me if that did happen.
The 2 bar OS upgrade should have just added the 3 new VE table and boost enrichment stuff.
2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.
If you don't post your tune and logs when you have questions you aren't helping yourself.
im on the 2 bar OS and added flex works fine, just go over everything in the tune encase something has changed, or revert back to stock OS see if it comes back
There is nothing that i can see different, ill try going back to the 1 bar os and see what happensOriginally Posted by 07GTS
turbosstreet dyno ign ve exp e85.hpt
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