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Didier Didier is offline
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Default JB4 switching to map 4 by itself - 03-23-2021, 06:36 PM

Hello!

I'm from Brazil and I have a 320i 2016 and and a few days ago I notice that the JB4 switching to map 4 by itself.

The master chip is new, I bought it on March 4th this year (ORDER BMS196425) because the original master chip has problem when I tried to make a firmware update.

Here in Brazil we have a mixture of ethanol and gasoline (93 RON) available.

I made a log e and took some screenshots of JB4 Mobile.

Could you please help me to fix this problem?

Thanks

Didier
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Default 03-24-2021, 11:25 AM

I see that....try updating your firmware to V8 to see if that resolves your issue.

Also, do you have the EWG wires connected?



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Default 03-24-2021, 03:32 PM

Hi, Steve!

Thank you very much for your support!

I checked that version 8 is beta, is that right? (I attached a screenshot of the phone to make sure I located the correct file)

As for the cables, follow the photos of the installation and also of the location of the solenoid.

I just didn't take a picture of the ODBII connection.

Thank you.

Didier
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Default 03-24-2021, 05:35 PM

Relog with BETA firmware


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It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
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Default 04-21-2021, 01:53 PM

Hello Terry!

Apparently the problem of swicthing maps by itself was solved, but I don't feel the car as strong as when I used the firmware in version 3. Follow the log, could you please check?
Thanks.
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Default 04-22-2021, 09:43 AM

It doesn't look like you have the EWG wires installed?



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Default 04-22-2021, 11:32 AM

Hi Steve!

I followed the manual for this link (https://www.n54tech.com/instructions/JB_n20_install.pdf) and understood that my car has EWG, in which case the blue cable is disconnected.

Following is a photo of the car and also a screnshot of the Installation Guide.

Please, can you check if I did it correctly?

Thanks

Didier
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Last edited by Didier; 04-26-2021 at 05:05 AM..
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Default 04-28-2021, 05:55 AM

Hi!

Could you please advise me if I made a mistake in the installation, because my understanding is that my car has EWG and PWG, and so there is no JB4 cable connected to the WG.

Thanks!
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Default 04-29-2021, 10:03 AM

That looks to me like the stock EWG cable is still connected.



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Default 04-29-2021, 11:15 AM

Hi Steve!

Sorry, I don't understand, which JB4 cable should I connect to the EWG? Isn't the Blue Cable used only for PWG?

Sorry for the insistence, but I really don't understand what I should do.

Thanks
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Default 04-29-2021, 05:48 PM

Helo Steve!

Following are photos of the JB4 board.

Are the cables that are supposed to be connected to the EWG these? If so, which one will be connected to the EWG (purple or blue)?

Thanks

Didier
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Default 04-30-2021, 09:12 AM

Yes, those are the EWG wires. You can only install them one way.



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Default 04-30-2021, 09:57 AM

Thanks!

I'll instal this weekend and I'll make a data log.

Have a great weekend!
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Default 04-30-2021, 11:57 AM

Hi

Is this the EWG connection that the JB4 cable should be connected to?

Thanks
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Default 04-30-2021, 03:40 PM

Yes


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It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
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Default 05-03-2021, 07:09 AM

Helo!

Follows JB4's data log and the screenshots of the app containing the current settings.

I saw in the topic (N54Tech.com - International Turbo Racing Discussion - View Single Post - F Chassis N55 JB4) that some parameters should be changed (Default settings are duty bias to 50 across the board, FF to 50, PID gain to 20, and shift reduction 60.)

I would like to know if these settings apply to my car (BMW320i 2016) and if the parameters are those that are in the orange box in the first screen print.

If not applicable, is there anything you need to adjust in the parameters?

Thank you and have a great week!
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Default 05-03-2021, 10:15 AM

For proper review and the JB4 to adapt, please do logs in 3rd or 4th gear from 2K rpms to redline at wide open throttle.



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Default 05-24-2021, 10:07 AM

Helo!

follow the datalog, can you rate it please?

Thanks
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Default 05-24-2021, 02:57 PM

You have some minor but repeated timing corrections up top so more octane would help.

You are also underboosting a bit...I'd recommend raising your FF to 80 and we'll see how that looks.



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Default 05-31-2021, 07:53 AM

Helo!

I set the FF to 80 and did a new datalog, can you please evaluate?

Thanks
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Default 06-01-2021, 11:39 AM

Timing looks good, FF was a bit more sensitive than I expected. Try dropping that to 70 and lets see if that get boost closer to target.



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Default 06-06-2021, 10:57 AM

Helo!

I set the FF to 70 and did a new datalog, can you please evaluate?

Thanks
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Default 06-07-2021, 05:40 PM

That's better.



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