motor has very mild cam and cat back exhaust, everything else is all stock.
started tuning and noticed that the power enrichment is still to lean i am trying to get around 12.5. have tuned lnf cobalts before but this is my first 5.3l is it normal to command so low afr to try and reach target or is there something else i should be doing
The 06 avalanche file shows stockish EQ ratio, where goes from 12.3ish down to 11 afr.
You need to change that to EQ ratio to 1.170ish to make it command roughly 12.5 afr, then you would want to disable the adders so it doesnt go richer. Having a wideband is needed to make sure it's getting what you want.
Also you arent entering PE untill 90% throttle, thats really high, lower it to 35-50% or something like that.
Last edited by 5FDP; 07-10-2014 at 09:45 PM.
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.
Reply With Quote