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2Addicts | BMW 2-Series forum Technical Topics B58 (M240i) Engine, Transmission, Exhaust, Tuning B58 Jb4 Map questions

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      10-23-2017, 09:02 PM   #1
Ziyadeth
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B58 Jb4 Map questions

Definitely new to this. been research and looking at the forums. couldn't really find a clear answer so if someone can help me i would love it so much!

So b58 motor with the JB4. running downpipes, intake, midpipes. I was thinking map 3, but also maybe map 5? am i going the right way? everytime i run map 3, i get sent back to safe map. am i doing something wrong? please help me. just want to get it working properly.

Thank you!!
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      10-25-2017, 10:21 AM   #2
CAMOETO
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Post your issue to n54tech. You will get a better response there with a JB4 specific question.
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      10-25-2017, 11:04 AM   #3
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what he said ^^

Also, I would update the firmware on your JB4 as a lot of the time, the firmwares on the units received by customers aren't up to date. You may be putting on map 3 and you don't have the latest firmware that even utilizes map 3 (earlier generations didn't have a map 3 option). Also, I run map 3 with CAI, sport cat downpipe (used to be catless) and full exhaust back. No issues at all being reverted to safe map.
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      11-15-2017, 05:33 PM   #4
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Octane you are using?
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