E85 swap from 93 vise versa

[markie864]

We have a 2015 GT and basic bolt on car. came across a SCT with bama tunes i think or either lund tunes with the Ghost cam E85 and 93 Tunes. my question is if i decided to put the e85 tune in drain the tank and fill up with e85 can i run it likt it is?? And if i decided to drive my car somewhere where e85 is to no avail can i run it all the way low on fuel and swap the 93 tune back in and fill up on 93 and keep going?? Just trying to see because only 1 station around here sells and i drive ALOTT. Thanks in advance

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[Bluemustang]

Why not get a Lund flex fuel tune? Then, you can run 91, 93, E85 or any combination thereof and the car's sensors will adjust accordingly. You can put 93 back in and keep on driving down the road.

 

[venumous]

What do you mean by "came across an SCT?" As in a tuner for sale with tunes on it?

 

[markie864]

I think the tuner has the flex fuel tunes on it. Bought it from a local and wasn't sure on how it worked exactly so with the ff tunes I can switch and keep going without having to swap tunes?

 

[venumous]

You can't load a tune built for another car onto your car. The tune is built with an ECU code tied only to that car.

You'll need a new tune written for your car. If you have access to E85 just go with Lund Racing and get their flex fuel tune. Then you can run any mix of E85/93 at any time and don't need to do anything at all.

 

[Dennisn]

You can't load a tune built for another car onto your car. The tune is built with an ECU code tied only to that car.

.

I thought this as well. You can load the wrong tune into a car. I bought a used sct and first thing I did was erase old tune. Turns out I did not erase it and loaded a manual tune into an auto car. Resulting in completely erasing all trans strategies and only way to get them back in was taking it to the dealer.

This is just a heads up that it is possible to load a tune in a car it's not programmed to. I would never load a tune that's not built for a specific car. But it is possible to load wrong tune into a car.

 

[venumous]

I guess by can't I meant "it won't work".

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