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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N55 Turbo Engine / Drivetrain / Exhaust Modifications > Jb4 n55 hidden codes?
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      12-12-2012, 02:38 PM   #1
Jst700
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Jb4 n55 hidden codes?

"The JB4 features a simple plug and play installation harness and built in deletion of hidden "tuner detection" codes"
This quote was from the burger motor sports site.
So my question is if I go in for service and I take out the jb4, will they not be able to detect it? My purpose is to protect my warranty. This is for a f30 335i
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      12-12-2012, 03:06 PM   #2
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Quote:
Originally Posted by Jst700 View Post
"The JB4 features a simple plug and play installation harness and built in deletion of hidden "tuner detection" codes"
This quote was from the burger motor sports site.
So my question is if I go in for service and I take out the jb4, will they not be able to detect it? My purpose is to protect my warranty. This is for a f30 335i
The JB4 N55 Stage 2 has the code deletion. Unfortunately only Stage 1 works with the F30. You'll have to purchase the CAN tool from them to delete codes.
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      12-12-2012, 04:04 PM   #3
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Originally Posted by bananachipz View Post
The JB4 N55 Stage 2 has the code deletion. Unfortunately only Stage 1 works with the F30. You'll have to purchase the CAN tool from them to delete codes.
Thanks.
Also on **********s, http://www.**********s.com/BMS-N55-S...-JB4-Tuner.htm

It says it is a "piggyback system" where scan tools cannot trace it?
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      12-12-2012, 10:50 PM   #4
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^^^ Just curious why some names of companies are censored? Is it because you don't like them? Or is that just a forum policy?
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      12-13-2012, 02:06 AM   #5
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^^^ Just curious why some names of companies are censored? Is it because you don't like them? Or is that just a forum policy?
I wasn't aware of the censoring, the forum automatically censors urls i guess
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      12-16-2012, 10:41 AM   #6
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You can also use a BT cable to clear codes. They have the file for the F30 on their website for download. Of course, BT cable allows you to do many other things too; including read and delete "shadow codes". But, it's much more expensive than buying the CAN tool.
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