Quote:
Originally Posted by Phantobe
*Drive slowly below 3500 rpm no WOT or hard acceleration until you see STFT rise rapidly followed by LTFT and stay high, this indicates that the petrol is now out of lines and the E85 has made it through the lines and pumps, this generally takes 2 or 3 km
@ steve99 or anyone who has the answer, didn't see it anywhere in the thread
Per the OP when switching to E85...What kind of numbers are you going to see to confirm that the petrol is out of the lines and is safe to flash over? I'm guessing by LTFT staying high, greater than 10%?
Anyone have some ballpark numbers here, getting ready to switch to E85 soon. |
Yes normally ltft should be below 10% . so when you see it jump from its normal values probably 7% or less then you know the e85 is through and it time to flash e85 tune.
same thing when you switch back to petrol from e85_ fuel trim will jump then its time to flash the petrol tune.
after the flash the fuel trims should be below 10% this confirms you have the fuel and tune matched. once you have driven a few miles with ltft below 10% your good to go.
also check you iam is 1 and you dont have heaps of knock. high fuel trims indicate a fuel and tune mismatch