Quote:
Originally Posted by Visconti
It's up to the tuner to setup the flex fuel via custom maps.
EcuTek offers a base file/help file..my Flex Fuel tune is completely different from EcuTek's 'help file', I personally dont like how they do certain things.. doesn't make their way wrong
Short Term & Long Term Fuel Trims 100% work and have nothing to do with Flex Fuel tuning.
No matter what you want your fuel trims in the -15/+15 range MAX.
I try and keep them -10/+10 Range
If you have big trims and have flex fuel setup the flex fuel fueling side of it isn't setup right.
Hope that helps
John
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This was exactly my concern / feelings. Fuel trims will eventually max out and then the ECU cannot compensate. My fuel trims also matched my ECA logging showing a trim adjustment going along with it.
I was fairly certain this was part of another issue I was having due to fuel trims possibly maxing out causing lean spots. I'll eventually post more information after I do a tear down... I just want to verify some things physically before I posted logs on the forum. As something like that can cause a PR mess for tuners.
Even though you and I do not see eye to eye and obviously don't get along and were curious I can definitely show you some of the scenarios in private.