N54Tech.com - International Turbo Racing Discussion
(#1)
Old
WhiteF10N63 WhiteF10N63 is offline
New Member
 
Posts: 2
Join Date: Jun 2019
Car: 2012 BMW 550XI
Default N63 I feel like something aint right. - 06-06-2019, 08:06 PM

So I have a 2012 BMW 550XI. I currently have *** less ********* and N63intake running the JB4. While at the dragstrip last night on a few different maps the car will throw a drivetrain malfunction about the 1/8 mile mark every run and I feel like at that point it reverts to stock map. I may be wrong but anyone that could take a peak at these logs would be great. All runs done using 100 Oct.
Attached Files
File Type: csv 2019-06-05 20_50_34_Map-2.csv (16.5 KB, 69 views)
File Type: csv 2019-06-05 19_20_14_Map-5.csv (22.4 KB, 57 views)
File Type: csv 2019-06-05 20_43_23_Map-7.csv (17.6 KB, 53 views)
Reply With Quote
(#2)
Old
535_BiTurbo 535_BiTurbo is offline
Junior Member
 
Posts: 302
Join Date: Jun 2013
Car: 2010 535
Default 06-19-2019, 07:48 AM

boost leak? solenoids, diverter valves, vaccum lines???? What was the code thrown?


2012 550i M sport - JB stage 1
Reply With Quote
(#3)
Old
jamesshermco jamesshermco is offline
New Member
 
Posts: 4
Join Date: Aug 2019
Car: 2012 BMW X5 50i
Default 09-25-2019, 11:58 PM

Quote:
Originally Posted by WhiteF10N63
So I have a 2012 BMW 550XI. I currently have *** less ********* and N63intake running the JB4. While at the dragstrip last night on a few different maps the car will throw a drivetrain malfunction about the 1/8 mile mark every run and I feel like at that point it reverts to stock map. I may be wrong but anyone that could take a peak at these logs would be great. All runs done using 100 Oct.
I have been having similar problems on my E70 X5 N63, since installing the jB4. During hard driving, I'll get drivetrain failure, engine failure, limp mode. Turn it off and restart, no more pproblems. Have got several updates from BMS. Still no fix. On mine I can disconnect the green and brown canbus wires and the problems go away.
Reply With Quote
(#4)
Old
jamesshermco jamesshermco is offline
New Member
 
Posts: 4
Join Date: Aug 2019
Car: 2012 BMW X5 50i
Default 09-27-2019, 02:37 PM

No boost or vacuum leaks. Only code I read on the jB4 app is 2D59.
Reply With Quote
(#5)
Old
jamesshermco jamesshermco is offline
New Member
 
Posts: 4
Join Date: Aug 2019
Car: 2012 BMW X5 50i
Default 09-27-2019, 02:39 PM

And again, if I disconnect the jB4 canbus wires, no problems.
Reply With Quote
(#6)
Old
SINasTER's Avatar
SINasTER SINasTER is offline
Junior Member
 
Posts: 44
Join Date: Dec 2015
Car: BMW 335xi E90
Default 11-27-2019, 12:47 PM

Quote:
Originally Posted by jamesshermco
And again, if I disconnect the jB4 canbus wires, no problems.
Seems like the JB4 for the N63 is not very reliable. Iíve been having issues with mine pratically from the get go! Have been abled to sort out a bunch of them, the issue that I hate most is that it seems I get a DMT everytime I activate a map other than map 6 (custom map). So over 3.5psi, I have DMT and the car goes into limp mode.

Maybe try to make yourself a custom map on map 6, starting at 2.0psi and add on from there after testing it out. Mine at 3.5psi itís pretty much stable 99% of the time.

The issues I canít really fix on mine is that it seems that my telemetry for FP-L and FP-H are bunkers! Almost always zeroed out even if I floor it and the car behaves really great. No stumble, no hesitations and not codes. Started about the time whem I upgraded to iOS13 :


BMW 550 M-Sport xDrive 2011
JB4 stage 2
Custom exhaust with 3" quad tips
Custom 3" D.P.s
ESR RF2 19" wheels
Front: Michelin Pilot Sport 4S 235/40R19
Front: Michelin Pilot Sport 4S 275/35R19
GPS location alarm system with Tag
Reply With Quote
(#7)
Old
jamesshermco jamesshermco is offline
New Member
 
Posts: 4
Join Date: Aug 2019
Car: 2012 BMW X5 50i
Default 11-27-2019, 10:26 PM

Terry ran out of ideas and I gave up. I just run it with the canbus disconnected, which sucks. Tried every suggestion they made. Even tried map 6 with different values. Took it all the way down to .5 psi boost. Still got a fault and limp mode every time I ran hard. Disconnect the canbus, everything runs great.
Reply With Quote
(#8)
Old
Terry @ BMS's Avatar
Terry @ BMS Terry @ BMS is offline
Tuner
 
Posts: 30,043
Join Date: Jan 2008
Default 11-28-2019, 09:34 AM

X5 and 550 are different platforms and use different CANbus systems. On top of that there is a lot of variance in terms of factory firmware being used between even similar cars.

As I've said before the N63 is a problem child from the factory so find settings that work reliably for you and enjoy it.


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.
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump




vBulletin Skin developed by: vBStyles.com
Copyright © 2007 - 2019, N54tech.com