Quote:
Originally Posted by RLNTLSS
the tune is unlocked for the e85 and it is recognized in the hp tune program as in working condition..so the tables are in the ecm already.. i was planning to lower my tank to10miles left then fill tank?with e85
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The tables are there correct...but they need to be populated with the correct data before putting E85 in the car. For example the Stoich table needs populated with the different stoich ratios for different Ethanol percentages. The entire table is set 14.07 stock. The Flex fuel spark table needs changed as well to make the most power on E.
And no you don't have to run the pump gas down...you can just add E85 and the ECU will adjust the tune for different Ethanol percentages once it's setup correctly.