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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > DME upgrade and Chargepipe question



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      08-01-2012, 06:53 PM   #1
xnfsx
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DME upgrade and Chargepipe question

I have a JB4 stage 2 for the n55. Someone told me to upgrade my DME if I am getting some issues with sudden jerks etc.

What is a DME? How and where can I upgrade? I can't find anything -_-.

Just want a quick direct answer please

also what does a BOV do on a chargepipe?

thank you.
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      08-01-2012, 07:06 PM   #2
eyim1988
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When did you buy your car? Build date?
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      08-01-2012, 07:21 PM   #3
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Hi

DME = Digital Motor Electronics

It's like your Windows for your car

Try to mail Mike! He is the JB4-god on this forum
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      08-01-2012, 07:23 PM   #4
xnfsx
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My build date is june 2010
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      08-02-2012, 05:42 PM   #5
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Quote:
Originally Posted by xnfsx View Post
My build date is june 2010

Then you need a DME update unless your car was @ the dealer and got programmed on a visit.
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      08-02-2012, 07:38 PM   #6
xnfsx
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how can I do this myself?
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      08-02-2012, 07:43 PM   #7
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Quote:
Originally Posted by xnfsx View Post
how can I do this myself?
I don't believe you can and want to. Disconnect the jb4 and go get it done.
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      08-02-2012, 07:49 PM   #8
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smh. ;( good thing I can do this quickly!
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      08-02-2012, 10:20 PM   #9
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Sudden jerks?? Are you sure the JB4 was installed correctly? Maybe you're getting misfires??

Several possibilities without more specific details


A BOV is an alternative to a DV, if you decide to switch from the OEM DVs to a BOV-setup, you'll need a new CP that has the proper connection
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      08-02-2012, 10:55 PM   #10
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Yea i started getting sudden jerks. Im going to uninstall the jb4. Im sure it was installed correctly. I felt more responsive a few weeks ago. Recently its been more unresponsive.
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      08-03-2012, 09:15 AM   #11
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Quote:
Originally Posted by benzy89 View Post
Sudden jerks?? Are you sure the JB4 was installed correctly? Maybe you're getting misfires??

Several possibilities without more specific details


A BOV is an alternative to a DV, if you decide to switch from the OEM DVs to a BOV-setup, you'll need a new CP that has the proper connection
Not gonna happen this is an n55 cant put a bov on it.
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