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Engine ECU flashing - upgrade and downgrade - help
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28-09-2022, 07:22 AM,
Post: #1
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Engine ECU flashing - upgrade and downgrade - help
Hello,
I have plans to perform two engine ECU flash, I never flash engine ECU before and I'm wondering do I need to perform some task prior and after flashing in these two scenarios, for ex. adaptation, upload parameters and so on ? 1. Engine CAYB I would like to downgrade SW version from 9978 to 9972 which is latest version before dieselgate. It's allowed to downgrade (some ECU is damaged on downgrade) or it's better to go latest version after dieselgate 9983 ? Current: Part No SW: 03L 906 023 LK HW: 03L 906 023 LK Component: R4 1.6l TDI H33 9978 2. Engine CZDA Here is clear, upgrade engine ECU to latest version 7006 Current: Part No SW: 04E 906 027 LD HW: 04E 907 309 BH Component: R4 1.4l TFS H26 3433 ----------------------------------------------------------------------
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