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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 2-step issues



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      10-23-2015, 08:36 PM   #1
Sshec152
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Jb4 2-step issues

07 335i 96k. Previously had jb4 g4 installed when I purchased the car (92k), upgraded to jb4 g5, as well as installing 2-step and anti-lag (haven't flashed it for anti-lag yet). 2-step works great while sitting still but while driving if i go wot i hit a "wall" at around 4k rpm with the clutch fully disengaged. Ive checked all of the wiring and all seems well, ive tried many different rpm engagement points and it still happens at 4k, although when 2-step is turned off (steering wheel controls) everything is normal. The only other thing i can think of would be the relay but i have not tested it yet. Any insight would be great, thanks!
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      10-23-2015, 09:57 PM   #2
DennyD06
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Triple check the green wire you put into the harness . Made a mistake when installing mine and used the wrong number on the male side vs female side and had the exact same issue you describe
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      10-25-2015, 09:47 AM   #3
Sshec152
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Quote:
Originally Posted by DennyD06 View Post
Triple check the green wire you put into the harness . Made a mistake when installing mine and used the wrong number on the male side vs female side and had the exact same issue you describe
Got it! I did the exact same thing, tapped into wire 18 on the MALE side and had problems. Went back and tapped into wire 18 on the FEMALE side and it works flawlessly now. Thank you
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      10-26-2015, 02:37 PM   #4
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^No problem
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