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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N57 / M57 Turbo Diesel Discussions - 335d > 335d ECU remap for B100?



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      03-05-2011, 12:07 AM   #1
Robmiezer
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335d ECU remap for B100?

I have been searching the internet and understand the main problem with B100 in a 335d (2010) is the Oil dilution (in North American Models) because of the post injection process. I was curious if anyone has tried or knows if it is possible to remap the ECU (or chip) to run b100? Seems like if you could reprogram to stop the post injection of b100 you would prevent it from seaping into the crank case. Or would running a European ECU solve this (because they dont have the DPF). I have spent the last week trying to find out if there is some way to run b100 in the 335d without engine problems. I like the idea of b100 for a cleaner burn and better lube, Thanks in advance!
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      03-05-2011, 09:01 AM   #2
volkswackin
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the ECU isnt the problem...the problem from what i know of is the dpf itself...
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      03-05-2011, 04:36 PM   #3
Robmiezer
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I understand that the DPF is a problem running B100 because the ecu injects extra fuel during the post injection to burn off the collection in the DPF. But, thought that with B100 you would not have as large of problem because it burns cleaner. I would think if you could skip the entire post injection, run B100 and you would have better lube, lower emission, no sulpher, and get better mpg (no injection of extra fuel for non performance use). If I am wrong (which I most likely am) please explain why we need the DPF if we have no sulpher in the fuel and why it is needed still. Thanks : )
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