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You dont have the same régulation between slow and fast accélération

Merci SDskinner What kind of device you use to flash your car? Can you follow your long time fuel trim (LongFT or LTFT) Before and After flashing ? Your values could help Me👍 My AFR still stable around 14.5. I really wonder if there isn't a tune already installed in my baby

Thanks for your expérience. You are running with a special tune or a flex fuel box or without anyting as me? Do you know your long time fuel trim at 80%?

I have also change my sparks for New iridium. I dont understand why at 50mil/h regular i have 2.1gal /62miles Normaly with 80% E85 i need to be around 2.6-2.7 galons right?

I'm not looking for a power gain. If you knew the small roads of my south-west region (Gers, Tarn...) The turns often follow one another every 25-50 meters with sometimes the surprise of encountering at the exit of a turn without visibility: a deer or a family of wild boar not to mention...

Merci Wildhorse. Je suis allé voir sur le site, il ne travaille pas avec le V6. Juste la GT et l'Ecoboost. Comme une tune paraît risqué, j'essaye de voir jusqu'où je peux augmenter le % de E85 en restant dans les limites de régulation de l'ECU. 80% de E85 avec 17-21% Longft (long time fuel trim)...

Some device as SCT Bama can save and restore tune, but at the first connexion the tune need to be stock either nothing is possible. Dimsport my genius can only read the id. In all case If anyting is wrong with the new tune, the risk is to loose the ECU integrity with a return unpossible...

You right. I have tried with 2 famous tuners. Same answer. Since they couldn't save the original tune and be absolutly sure that's the stock tune, they didn't want to take any risks. in case of a problem that could be very expensive to fix it They explained to me that usual french tools dont...

Thanks SMS2022 for your answer but whats mean CEL and grenading? My english is not so good to understand.😢

Hi all I leave in France. I am the happy second french owner of a Mustang V6 2016 since 4 months. I love it too much and also ask me who owns who? 😜 The first french owner imported it from Montréal Canada. He dont do anyting outside maintenance but Before we dont have any Information. Without...