Tips to Read and Write Peugeot MEVD17.4.4 ECU with Foxflash

By | September 23, 2025

Question: 
I just bought FoxFlash to read my MEVD 17.4.4 Peugeot 308 GT 205 hp and I need some advice
Is 12V enough or is 14V better?
Once the play is done I edit the file with WinOLS 4.7 I have a mappack and do I have to do something else before I write the file so my car can start smoothly?

foxflash-MEVD-17.4.4-ecu-1 foxflash-MEVD-17.4.4-ecu-2

Here is the clue.

12.5V to connect directly to the car, outside it’s better to prefer 14 volts or 13.5V.

You write that’s all, but let the tool do the checksum calculation.

Fox automatically does the tprot off automatically. It’s automatic!!

Must do the trpot off otherwise it only starts once.

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