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Author Topic: 2.7 Biturbo ecu swap  (Read 2454 times)
tom 2.7
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« on: February 14, 2021, 11:17:59 AM »

Car A6 C5 2.7 T ajk tiptronic transmission. I am planning to switch from ecu 4B0907551E 512K file to ecu 4B0907551M 1M file. What file can I use on the 551M? I found info that the file from s4 L fits, is it true?

Regards.
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nyet
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« Reply #1 on: February 14, 2021, 11:38:54 AM »

Yes 8D0...551L will work.
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ME7.1 tuning guide (READ FIRST)
ECUx Plot
ME7Sum checksum checker/corrrector for ME7.x

Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience.
tom 2.7
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« Reply #2 on: February 14, 2021, 11:59:59 AM »

I found such info.
8D0907551L
MAF - Hitachi
Transmission - Tiptronic
Memory Chip - 29F800BB
Serial Memory Chip - 95040
I have Maf Bosch in my car, will it work?
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BlackT
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« Reply #3 on: February 14, 2021, 02:45:07 PM »

https://s4wiki.com/wiki/Mass_air_flow
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tom 2.7
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« Reply #4 on: February 14, 2021, 03:07:30 PM »

ok that is, there are two options, maf replacement to hitachi, or maf map transfer from bosch to 8d0 L software. Right?
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nyet
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« Reply #5 on: February 14, 2021, 05:11:25 PM »

ok that is, there are two options, maf replacement to hitachi, or maf map transfer from bosch to 8d0 L software. Right?

correct!
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ME7.1 tuning guide (READ FIRST)
ECUx Plot
ME7Sum checksum checker/corrrector for ME7.x

Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience.
tom 2.7
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« Reply #6 on: February 15, 2021, 03:19:13 PM »

only these maps I have to move or something else?
MLHFM x2
MLOFS x1
KFKHFM x2
KFMLDMX x2
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