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Author Topic: MPPS 21, 04L907309L  (Read 126 times)
adam_wad
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« on: October 13, 2021, 10:03:27 AM »

Hi, I have soft 9970 uploaded, I would like to downgrade to 1969, I have mpps v21 cable.
Can I even do it without opening the ECU with this cable?

my car is AUDI A4 B9 2016 engine DETA ecu number 04L 907 309 L
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