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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 G5 Board. Need ISO for e85?



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      07-05-2013, 04:05 PM   #1
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JB4 G5 Board. Need ISO for e85?

Hi guys. Ive got an 08 e92 with a DCI, downpipes, and jb4 noniso g5 board, running map 5. Im curious if I can add e85 in or if I need to switch to iso to do so?
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      07-05-2013, 04:30 PM   #2
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You don't.
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      07-05-2013, 07:28 PM   #3
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Terry recently stated [on N54tech] that non ISO is obsolete and that all new G5's are shipping with ISO. I'd say, just make the jump to ISO. I've been using ISO for about 8 months and have had nothing but good things to say personally.

From Terry@BMS:

"All JB4s shipped now are ISO. If any addl bugs pop up with it they will be addressed via software updates. Integrated is obsolete."

Link to thread:

http://www.n54tech.com/forums/showthread.php?t=20284
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      07-06-2013, 12:32 AM   #4
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I'm just worried about the wastegate rattle that many are experiencing with the ISO version. I do have rattle now and while it is fairly quiet, it still bugs me a lot since my car is quiet overall.

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Originally Posted by dfjaws View Post
Terry recently stated [on N54tech] that non ISO is obsolete and that all new G5's are shipping with ISO. I'd say, just make the jump to ISO. I've been using ISO for about 8 months and have had nothing but good things to say personally.

From Terry@BMS:

"All JB4s shipped now are ISO. If any addl bugs pop up with it they will be addressed via software updates. Integrated is obsolete."

Link to thread:

http://www.n54tech.com/forums/showthread.php?t=20284
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      07-06-2013, 03:22 AM   #5
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Do some more reading on this you will find some good news..

That rattle is long gone. The jb4 g5 firmware has been updated like multiple times in the last weeks ...

Your good make the jump, take advantage of the new features
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      07-09-2013, 12:27 PM   #6
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Can you please point me to a good DIY to switch over and where i can get the latest firmware updates?
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Originally Posted by junitos View Post
Do some more reading on this you will find some good news..

That rattle is long gone. The jb4 g5 firmware has been updated like multiple times in the last weeks ...

Your good make the jump, take advantage of the new features
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      07-09-2013, 12:30 PM   #7
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http://www.n54tech.com/forums/showthread.php?t=17441

there you go if you need more help just ask..
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      07-09-2013, 12:36 PM   #8
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Thanks a bunch!

Just one questions though, do I have to completely take out the JB4 and disconnect everything or can I leave it plugged in, take it apart, cut the diodes, and then upload the firmware?
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Originally Posted by junitos View Post
http://www.n54tech.com/forums/showthread.php?t=17441

there you go if you need more help just ask..
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      07-09-2013, 02:31 PM   #9
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all you need to do is un crew you control box processor pop it open and remove diodes.

leave everything else plugged in

then you'll be ready to upload g5 firmware 23g is the latest one
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      07-09-2013, 04:31 PM   #10
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Can anyone please take a look at this and tell me if there is anything off?
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      07-09-2013, 05:59 PM   #11
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send this to terry@burgertuning.com
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