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BMW Tech and Performance
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the M40 ECU
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<blockquote data-quote="jarance" data-source="post: 240463" data-attributes="member: 21"><p>If I am not mistaken, M40 engine use AFM and M43 engine use MAF. So in term of engine management, there is a different. </p><p></p><p>I presume the fuel map would be different as well.</p><p></p><p>Bosch Motronic M1.7 for M40 cannot be remap (I think) but Bosch Motronic M5.2 (OBD-II) for M43 maybe can be remap.</p></blockquote><p></p>
[QUOTE="jarance, post: 240463, member: 21"] If I am not mistaken, M40 engine use AFM and M43 engine use MAF. So in term of engine management, there is a different. I presume the fuel map would be different as well. Bosch Motronic M1.7 for M40 cannot be remap (I think) but Bosch Motronic M5.2 (OBD-II) for M43 maybe can be remap. [/QUOTE]
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