Bmw E39 520D M47D20

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Bmw E39 520D M47D20

Postby azrail » Fri Sep 22, 2023 11:09 am

Hello everyone!
Have been doing a fair bit of reading about the ECU needing to be flashed with the new MAF code when replacing the Bosch MAF ending with 314 to either 468 or 527. I think it must be with DIS V44. But I dont have any idea how can I do it ?
I had a few performance issues such as boost not coming on in 1st gear until 2000rpm and in all the other gears I would have a flat spot/overboost at around 2000rpm (you can feel the turbo starting to build up, then it cuts out for 1 second, then resumes).

azrail
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