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Default 2017 440i EWG Issues with JB4 - 03-23-2021, 05:50 AM

Hey everyone,

Wanted to start out by saying that I have used Burger products for several years and love the results and customer service. My issue is that I just installed a brand new JB4 (with new EWG harness already hardwired into the harness) and updated the firmware to Version 19 based on suggestion of customer support. No matter what map is selected (0-3), I am getting the following codes:

123412 - electric wastegate, stop learning: stop position (wastegate closed) not found
123401 - Wastegate learning stop during *** heading cycle
123437 - no description found
120408 - reduced power mode


I unplugged the EWG and havenít gotten a code since yesterday and the car seems to be driving fine. The only other mod on the car is an intake. Anyone run into this or have a work around?


2016 M4 Competition
2017 440i Coupe
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Default 03-23-2021, 10:51 AM

Please upload a log of the issue wo we can see what's going on, could be a setting or ???



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Default Log File for Car Attached - 03-23-2021, 01:22 PM

Please see attached .csv log file.
Attached Files
File Type: csv P58_M3_R1_210323_1552.csv (5.5 KB, 82 views)


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2017 440i Coupe
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Exarmy2010 Exarmy2010 is offline
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Default 03-23-2021, 06:29 PM

I have a 440ix and I am getting the same codes on my car. Like you I got the new JB4 with the ewg pre-installed. Only other mods are a BMS air intake and pipe. Already told map 2 looks good, if I clear the codes, which takes 2 times. First time to clear the ewg codes and the second time clears the reduced power. Today they had me take a pic of my circuit board.

I also have one other code showing up.

123411 electric wastegate, stop learning, stop position (wastegate open) Not Found

Last edited by Exarmy2010; 03-23-2021 at 06:38 PM..
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Default 03-24-2021, 11:08 AM

It might be related to a firmware change we made here, will start to get to the bottom of it. Until then just leave EWG disconnected if you have the fault.


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Default C*tless DP, Intake, Map 3, 93 Octane - 03-27-2021, 10:43 AM

Thanks Terry! Please see the attached logs and let me know if they look good for my setup. Thanks!
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2016 M4 Competition
2017 440i Coupe
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Default CSV Log File Attached as Well - 03-27-2021, 10:46 AM

CSV Log file
Attached Files
File Type: csv P58_M3_R1_210327_1244.csv (5.8 KB, 85 views)


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Default 03-29-2021, 11:30 AM

Looks pretty good...trims are pretty much maxed out so keep an eye on that.



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Video of our Stage 2 LPFP upgrade installation.

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Default 03-29-2021, 12:23 PM

Anything I can do to adjust them through the JB4?


2016 M4 Competition
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Default 03-30-2021, 09:32 AM

No, you'll need to add our BEF, CPI, or meth to resolve that.



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