JB4 Drivetrain Malfunction?

Mike@N54Tuning.com · 08-03-2016, 10:20 AM

Quote:

Originally Posted by bariaga1

bump...going through the same motion after installation. Installed the latest PWG firmware from the N55 jb4 thread.

JB4 works but the car will throw the code sometimes without actual loss in output.

Everything is connected except the flex fuel connector, actually didn't plug the female/male harnesses together on the JB4 (that's how i interpreted the installation lol)

When I check for codes via laptop, says there are none...and when I restart the car it goes away to only come back later.

Do you have auto code clear on?

Mike

bariaga1 · 08-03-2016, 12:36 PM

I do not think I have that option Using this thread as reference Linky

I've only set it to map 1, LED max brightness and accidently touched the 3rd gear boost limiter (by the way, where is the default value on this?)

Also upgraded to latest firmware from that thread in the link right above.

'0 map menu, map shown on tach. Note map guide above.
'1 Not used for this model
'2 Boost gauge on fuel, boost is shown in the fuel gauge under heavy throttle with empty being 0psi boost and full being whatever you've assigned to your boost failsafe PSI on the user adjustment page. Default is 18psi. To enable this feature move the tach from 0 to 1.
'3 LED MAX brightness mode. For those with factory LED headlights this option brightens HALO during nighttime operation. To enable this feature move the tach from 0 to 1.
'4 OBDII Diagnostic Code Delete
'5 1st gear boost limit setting. 0-7000rpm = 0-20psi.
'6 2nd gear boost limiter
'7 3rd gear boost limiter[/HTML]

Quote:

Originally Posted by Mike@N54Tuning.com

Do you have auto code clear on?

Mike

alan_mpower · 08-03-2016, 01:05 PM

Quote:

Originally Posted by ocN55

What year is your car? And double check what firmware you are running.

Any lights should go away if they appear from installation.

make shure that the charge pipe is tightened proparly and the things on it dont know what they are called they poppin for the air?? maybe the arimass sensors? is proparly inserted. mine wasnt and now the drivetrain shit is gone but i have others issues with my car to deal with ahahah

hope it works for you

Mike@N54Tuning.com · 08-03-2016, 02:19 PM

Quote:

Originally Posted by bariaga1

I do not think I have that option Using this thread as reference Linky

I've only set it to map 1, LED max brightness and accidently touched the 3rd gear boost limiter (by the way, where is the default value on this?)

Also upgraded to latest firmware from that thread in the link right above.

'0 map menu, map shown on tach. Note map guide above.
'1 Not used for this model
'2 Boost gauge on fuel, boost is shown in the fuel gauge under heavy throttle with empty being 0psi boost and full being whatever you've assigned to your boost failsafe PSI on the user adjustment page. Default is 18psi. To enable this feature move the tach from 0 to 1.
'3 LED MAX brightness mode. For those with factory LED headlights this option brightens HALO during nighttime operation. To enable this feature move the tach from 0 to 1.
'4 OBDII Diagnostic Code Delete
'5 1st gear boost limit setting. 0-7000rpm = 0-20psi.
'6 2nd gear boost limiter
'7 3rd gear boost limiter[/HTML]

You're best off posting to the N54Tech support forum for technical help on what might be going on with the car and how to best resolve it.

The Code delete is Menu 4

Mike

mxrider3355 · 08-03-2016, 10:11 PM

I have had this same issue when I am in 6th gear and really give it gas... did u guys ever solve the problem?

I have JB4 map 2, with charegepipe, Fe intake, and ER catless downpipes

Tuned435i · 08-03-2016, 10:19 PM

Quote:

Originally Posted by mxrider3355

I have had this same issue when I am in 6th gear and really give it gas... did u guys ever solve the problem?

I have JB4 map 2, with charegepipe, Fe intake, and ER catless downpipes

It was a while ago, but I'm pretty sure it was just a boost leak in the charge pipe. If you're running a aftermarket ER chargepipe, I'd recommend loosening the middle clamp that connects the 2 pieces. Under hard boost when fully tightened it pulls off of the intercooler a little. So if that's the case, loosening it a little should help!

Bmwscape · 08-12-2016, 11:04 PM

I was having similar issues with my vehicle. As crazy as it sounds, I took it into the dealership and after a software update on the vehicle it's been running without any issues. I would check to see if you need an update. Plenty of DIY videos for it if your dealership doesn't like aftermarket parts.

zinner · 08-15-2016, 08:35 PM

Quote:

Originally Posted by F32 N55

Agreed. Pull codes, email support.

plus one for this course of action. They have always helped me. Also double check any wiring taps or connections in relation to the canbus or odbII. The are the most suspect to vibrating lose and will cause havoc if they do.

Mike@N54Tuning.com · 08-15-2016, 10:20 PM

Quote:

Originally Posted by mxrider3355

I have had this same issue when I am in 6th gear and really give it gas... did u guys ever solve the problem?

I have JB4 map 2, with charegepipe, Fe intake, and ER catless downpipes

It's rare 2 people have the same problem. Post a JB4 log and faults to the n54tech support forum if you want someone from BMS to take a look at it.

Mike

djak · 08-23-2016, 07:18 PM

Quote:

Originally Posted by bariaga1

bump...going through the same motion after installation. Installed the latest PWG firmware from the N55 jb4 thread.

JB4 works but the car will throw the code sometimes without actual loss in output.

Everything is connected except the flex fuel connector, actually didn't plug the female/male harnesses together on the JB4 (that's how i interpreted the installation lol)

When I check for codes via laptop, says there are none...and when I restart the car it goes away to only come back later.

+1.. Minus the flex fuel harness, mine is installed properly. Updated JB4 firmware from the F30 link. I think version 8a (PWG). Since then had this issue once, a bump at around 100 mph and 3000 rpm and shakey start. Honestly wish I knew what version it was shipped with originally because it was much better and stable.

wakeofdeath · 08-24-2016, 08:42 PM

Quote:

Originally Posted by djak

+1.. Minus the flex fuel harness, mine is installed properly. Updated JB4 firmware from the F30 link. I think version 8a (PWG). Since then had this issue once, a bump at around 100 mph and 3000 rpm and shakey start. Honestly wish I knew what version it was shipped with originally because it was much better and stable.

Get a real tune lol

08-03-2016, 10:11 PM	#27
mxrider3355 New Member 8 Rep 28 Posts Drives: Now: 2013 335i Had: 2006 3251 Join Date: Dec 2008 Location: Northern NJ iTrader: (0)	I have had this same issue when I am in 6th gear and really give it gas... did u guys ever solve the problem? I have JB4 map 2, with charegepipe, Fe intake, and ER catless downpipes
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08-12-2016, 11:04 PM	#29
Bmwscape Private First Class 13 Rep 121 Posts Drives: 2015 335i xdrive Join Date: Aug 2015 Location: New York iTrader: (1) Garage List 2015 BMW 335i xDrive [0.00]	I was having similar issues with my vehicle. As crazy as it sounds, I took it into the dealership and after a software update on the vehicle it's been running without any issues. I would check to see if you need an update. Plenty of DIY videos for it if your dealership doesn't like aftermarket parts. __________________ 2015 335i xDrive Mineral Grey {JB4} {ER Chargepipe} {ER Competition FMIC} {VRSF Catless Downpipe} {Dinan CF CAI} {Dinan Lowering Springs}
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