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ECU Remapping by BVO
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<blockquote data-quote="XXX" data-source="post: 410365" data-attributes="member: 231"><p>You are correct, when u flash the ECU you are actually erasing all data from the original ECU and putting in a new programme...normally they will save ur original ECU setting into a thumbdrive/CD so that you can reflash back to original settings if need be... anyway they will only tweak certain perimeters only and not evrything... ..but piggyback is just tricking/bypassing the original ECU but the BMW ECU is very smart and after it finds out that its being tricked it overrides the piggyback settings..</p><p>I may be wrong but this is what I was made to understand.</p></blockquote><p></p>
[QUOTE="XXX, post: 410365, member: 231"] You are correct, when u flash the ECU you are actually erasing all data from the original ECU and putting in a new programme...normally they will save ur original ECU setting into a thumbdrive/CD so that you can reflash back to original settings if need be... anyway they will only tweak certain perimeters only and not evrything... ..but piggyback is just tricking/bypassing the original ECU but the BMW ECU is very smart and after it finds out that its being tricked it overrides the piggyback settings.. I may be wrong but this is what I was made to understand. [/QUOTE]
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