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Marcos335iN54 Marcos335iN54 is offline
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Default Need help. After installing JB4 Car cuts off when I try to drive - 09-09-2018, 09:37 AM

I have been searching but haven''t found symptoms identical to mine. Just trying to figure out what I did wrong and what I need to replace. Thanks in advance for your help.

I installed JB4 gen5 and BT adapter on my 07 355i. Followed installation instructions. While I had covers off I put new NGK spark plugs Gaped at .22 and new Delphi coils. After initial start up I got reduced power message and got code 3100, 2abc and 2acb Figured it needed updating so I went ahead and updated firmware. Was able to clear codes with JB4 but when I put the car in drive and give it gas it cuts off. attempted to drive car to get logs but can barely make it out of driveway. I did some research and decided to ground the map in case I lost ground. Made sure all settings were to stock. Double checked everything I could think of or read could be the cause I am down to code 2ABD intake pressure. This code comes up at start up. I can clear it but when I put it in drive and give it gas it cuts off. Just wanted to check here before I start throwing parts at it. Thanks again
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mojo20032004 mojo20032004 is offline
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Default 09-09-2018, 09:49 AM

Remove jb4 and see if it reoccurs. You need to eliminate stuff u installed to make sure it's not causing your issues.


2007 e90 335i
Hexon turbos
Fbo with Cpi tuned at e55
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Marcos335iN54 Marcos335iN54 is offline
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Default 09-09-2018, 09:59 AM

True. I was planing to remove it and see if it reoccurs. I even considered putting my old plugs back in and oem coils since I never had a misfire with them. Was doing that as part of preventive maintenance while I had covers off. Thought I would check first if any one had this happen before and hoping it was something simple I overlooked. I was thinking it maybe a bad Tmap
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08 335Ci 08 335Ci is offline
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Default 09-09-2018, 10:44 AM

Make sure your tmap sensor is set correctly


No matter how fast I go there's always someone slower in front of me.

You can lead a horse to water but you can't make him Jet Ski.

'10 E92 335 M Sport, JB-4 G5 ISO, 3" CPE Charge pipe, WMI w/dual CM 5 nozzles, 3.5 Tmap, ARM Relocated Inlets (don't do it), VSRF Outlet, BEF, Front Strut Brace, SS brake lines, Drilled and Slotted Rotors, Anti-lag, OCC. Escort Max 360

Totaled by a careless driver:
'08 E92 335, M sport option
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Marcos335iN54 Marcos335iN54 is offline
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Default 09-09-2018, 11:09 AM

I made sure Tmap was set to 0 since I have stock one
Thanks
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Dave @ BMS/Fuel-It!'s Avatar
Dave @ BMS/Fuel-It! Dave @ BMS/Fuel-It! is offline
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Default 09-09-2018, 03:39 PM

Uninstall JB4 & see if car will run.

Double check all connections too- Any codes?


Burger Motorsports
Home of the JB4 the worlds most popular turbocharged tuning system!

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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Marcos335iN54 Marcos335iN54 is offline
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Default 09-10-2018, 03:23 AM

Thank you for the reply's I will remove it later today and see if car goes back to normal.

Reason I think something went wrong is I was able to drive the car at first under reduced power after initial installation

Additional info
I was able to drive car after Initial install of JB4 After initial start up I got reduced power message and got code 3100, 2abc and 2acb but I went and drove it. I had hoped once I updated software everything would be ok. I had to wait for BT activation. After BT was activated I did the firmware update after that is when car would not leave driveway. I made sure my settings were correct. I unhooked the BT to see if that was the culprit but it still would stall. I thought maybe I had a bad ground and added a ground to the yellow black wire on the map sensor. I checked all my fuses both inside glovebox and under hood
I found a few errors on my settings and corrected them but still car will stall. I double checked all my conections to make sure they were good and made sure the arrows pointed correctly. I did one plug at the time during install to make sure everything went were it was supposed to go
After I double checked everything I could think of or read could be the cause I am down to code 2ABD intake pressure. Car cranks right up. It idles no problem. While in park I can rev the engine up just once I put it in gear and give it gas to move it stalls or feels like accelerator is not responding. Thanks again
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Marcos335iN54 Marcos335iN54 is offline
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Default 09-10-2018, 12:22 PM

Removed JB4 car back to normal. No codes running normal with full boost. No more limp mode
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Payam @ BMS's Avatar
Payam @ BMS Payam @ BMS is offline
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Default 09-10-2018, 01:17 PM

Quote:
Originally Posted by Marcos335iN54
Removed JB4 car back to normal. No codes running normal with full boost. No more limp mode
Where did you purchase the JB4 from?


Burger Motorsports
Home of the Worlds fastest N20s, N54s, N55s, S55s, N63s, and S63s!

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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Marcos335iN54 Marcos335iN54 is offline
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Default 09-10-2018, 02:00 PM

Thanks for the reply. Unfortunately I bought it used from a member in a 335i group. That’s why I was hoping I did something wrong or had a wrong setting. Any help would be greatly appreciated. I took pictures of my settings when I had it hooked up. I thought of reinstalling it and double checking everything again
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Dave @ BMS/Fuel-It! Dave @ BMS/Fuel-It! is offline
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Default 09-10-2018, 09:12 PM

Quote:
Originally Posted by Marcos335iN54
Thanks for the reply. Unfortunately I bought it used from a member in a 335i group. Thatís why I was hoping I did something wrong or had a wrong setting. Any help would be greatly appreciated. I took pictures of my settings when I had it hooked up. I thought of reinstalling it and double checking everything again
That would help, post that + a pic of the actual board, remove cover.

Also, inspect all the pins too.

Kinda one of the pitfalls of buying used sometimes : /


Burger Motorsports
Home of the JB4 the worlds most popular turbocharged tuning system!

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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