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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > jb4 help!!

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      02-05-2013, 09:39 PM   #1
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Drives: 2007 335i
Join Date: Oct 2012
Location: tampa fl

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2007 bmw 335i  [0.00]
jb4 help!!

okay so i thought id try and use my jb4 to adjust the waste gate to see if it would help with the rattle i set the future use d from 0 to 99 that helped a bit but then another user on here mentioned that there was another slot that you could set to 90 and raise by 5 if it didnt help i started to change the wastegate position and set it up to 90 but didnt remember what it was originally so it seemed like after that the sound came back so i set it down to 80 not sure if that was the original setting n now the sound is still there and it seems like the car is idling a little high it normally idles at 650 today it seems like its more at 750.
my main question is when you first connect your jb4 to a laptop and open the software is everything as far as the user adjustable slots set to a standard number or are they different on every car?
second i have my default waste gate position at 80 is that right? and ff/ wastge adaptation says 62 i didnt touch it that one
and then my future use d is 99.
does everything seem like its set right to you guys?
my firmware is 10/1/12/2 and interface 12/14/2012
in the settings it says g5 iso
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      02-06-2013, 08:00 AM   #2
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Drives: 2007 335i, 2015 M3
Join Date: Dec 2008
Location: N54tuning.com

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10/1 is non ISO G5 firmware. So update to the latest ISO firmware and read the notes re: rattle.

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