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Title: Swapping ecu files L to M box. Post by: scottydo on September 10, 2016, 01:39:25 PM I want to flash from a 4B0 907 551 L file to a 8D0 907 551 M file. The ecu has a GIAC tune on in. Can I change the ecu files without effecting the tune? Are there any specific steps I have to go through to retain the tune while flashing the different file. I know both are 1024kb ecu's and should be interchangeable. I have been searching for a answer for a few hours and the search function gods have not shined on me.
Title: Re: Swapping ecu files L to M box. Post by: nyet on September 10, 2016, 01:45:25 PM The file is the tune.
Title: Re: Swapping ecu files L to M box. Post by: scottydo on September 10, 2016, 01:48:58 PM Sorry, I didn't structure my question properly. Can I alter the information switching the box from the 4B0 907 551 L to the 8D0 907 551 M box file since this ecu already has a GIAC tune on it.
Title: Re: Swapping ecu files L to M box. Post by: nyet on September 10, 2016, 01:50:26 PM No. GIAC moves and encrypts the maps that they alter, and put bogus values in recognizable map locations.
Title: Re: Swapping ecu files L to M box. Post by: scottydo on September 10, 2016, 01:52:56 PM So essentially contact a GIAC tuner and have them swap it.
Title: Re: Swapping ecu files L to M box. Post by: Carsinc on September 10, 2016, 07:05:38 PM That wont work either.
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