JB4 install

Fez335i · 07-25-2015, 02:52 PM

I installed JB4 this afternoon, bought used off a forum member, and when I start the car I get a engine fault warning - reduced power. Its a yellow engine icon. I have followed the instructions for the error, checked and rechecked all the connectors, they are all on fine.. The board is plugged into the harness as well. This happened from the very first start with the JB4 installed

I took the car for a drive, with the map set to 0 and the car is definitely running on reduced power

I did use INPA to delete all the error codes, then log the current codes.

Does anyone have any suggestions on what it could be?

Any help is much appreciated!!

Thanks
Fez

ArsE92 · 07-25-2015, 04:27 PM

Have you triple-checked the connections? I seem to remember one of my power wires had fallen out (the one with the spade connector I think). The JB4 still worked I think but it wasn't quite right.

I had to solder it in the end.

Fez335i · 07-25-2015, 05:32 PM

Yes I've checked and re-checked the connectors about 5 times..

The two error codes I get are:

3100 boost pressure control, deactivation

2A80 inlet-Vanos variable can control test, input signal

windymissile · 07-26-2015, 12:59 AM

I'm going to state the obvious but, 99% of the time it is installation error.
Read through the pdf guide and see if you have missed anything.

http://burgertuning.com/instructions/JB4PnP.pdf

WM

lolololol · 07-26-2015, 03:42 AM

+1 .....or

Could be a faulty unit ?

Banners24b · 07-26-2015, 03:53 AM

Hi,

Fez bought the unit from me, had it in my car for about a year didnt have any issues.

I did get errors under WOT but new coil packs fixed that, a common Jb4 prob.

Other than that i can only thinl the power connector isnt on properly in the green harness, or the leads have slid back slighty when put back into the ecu.

I guess you can enter the jb menu ok? Which would show the jb4 being picked up ok

windymissile · 07-26-2015, 04:24 AM

I would strip it all out and start again. It's so easy to bend a pin or pull a wire while putting the ECU lid back on.

WM

Fez335i · 07-26-2015, 07:03 AM

Yeah I can enter the JB4 menu with the steering wheel controls, so the unit is being picked up.
I'm going to try taking it all out and starting from the beginning again today, fingers crossed that works!

makkan00 · 07-26-2015, 07:05 AM

Quote:

Originally Posted by windymissile

I would strip it all out and start again. It's so easy to bend a pin or pull a wire while putting the ECU lid back on.

WM

+1

Fez335i · 07-26-2015, 10:29 AM

All sorted!

I disconnected and reconnected everything.. It was plugged in the right way, so its a puzzle as to why it why it was causing issues.. But glad its working now

Did a couple of runs, and to be honest it doesn't feel that much more powerful.. Will have to test it a bit more when its not pouring with rain..

idnan · 07-26-2015, 10:59 AM

Quote:

Originally Posted by Fez335i

All sorted!

I disconnected and reconnected everything.. It was plugged in the right way, so its a puzzle as to why it why it was causing issues.. But glad its working now

Did a couple of runs, and to be honest it doesn't feel that much more powerful.. Will have to test it a bit more when its not pouring with rain..

Which map are you running? You need to do at least 3-5 full throttle pulls in 3rd/4th gear to allow all the changed to adapt and then it will feel a lot better.

Fez335i · 07-26-2015, 11:02 AM

Quote:

Originally Posted by idnan

Which map are you running? You need to do at least 3-5 full throttle pulls in 3rd/4th gear to allow all the changed to adapt and then it will feel a lot better.

Tried it on Map 1..

To be honest it was pouring with rain and the roads were quite busy... Will go out again tonight and give it another go

AWSAWS · 07-26-2015, 11:43 AM

Map 5 will be the best for you mate. If you have the usb cable then do some logs and see how much boost you run.

ArsE92 · 07-26-2015, 12:13 PM

The difference when on Map 5 is like night and day.

Fez335i · 07-26-2015, 01:49 PM

Did a few runs on Map 5 and the car deffo feels much faster now!!

Thanks for the help everyone..

Next up front mount intercooler which I've also bought off a forum member!

makkan00 · 07-26-2015, 01:51 PM

Can you run map 5 on a standard car?
I though with each map, you were given list of mods.

lolololol · 07-26-2015, 02:29 PM

Quote:

Originally Posted by makkan00

Can you run map 5 on a standard car?
I though with each map, you were given list of mods.

Auto tune

makkan00 · 07-26-2015, 03:25 PM

Quote:

Originally Posted by omaragha

Auto tune

07-25-2015, 02:52 PM	#1
Fez335i Private First Class 10 Rep 187 Posts Drives: Blue E92 335i Join Date: Jun 2015 Location: Leeds, UK iTrader: (0)	JB4 install - Help I installed JB4 this afternoon, bought used off a forum member, and when I start the car I get a engine fault warning - reduced power. Its a yellow engine icon. I have followed the instructions for the error, checked and rechecked all the connectors, they are all on fine.. The board is plugged into the harness as well. This happened from the very first start with the JB4 installed I took the car for a drive, with the map set to 0 and the car is definitely running on reduced power I did use INPA to delete all the error codes, then log the current codes. Does anyone have any suggestions on what it could be? Any help is much appreciated!! Thanks Fez Last edited by Fez335i; 07-25-2015 at 05:29 PM..
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07-25-2015, 04:27 PM	#2
ArsE92 First Lieutenant 23 Rep 396 Posts Drives: E92 335i SE Join Date: Nov 2011 Location: North-West UK iTrader: (1)	Have you triple-checked the connections? I seem to remember one of my power wires had fallen out (the one with the spade connector I think). The JB4 still worked I think but it wasn't quite right. I had to solder it in the end.
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07-25-2015, 05:32 PM	#3
Fez335i Private First Class 10 Rep 187 Posts Drives: Blue E92 335i Join Date: Jun 2015 Location: Leeds, UK iTrader: (0)	Yes I've checked and re-checked the connectors about 5 times.. The two error codes I get are: 3100 boost pressure control, deactivation 2A80 inlet-Vanos variable can control test, input signal
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07-26-2015, 12:59 AM	#4
windymissile Major 67 Rep 1,431 Posts Drives: 335i M Sport Join Date: Apr 2013 Location: UK iTrader: (0)	I'm going to state the obvious but, 99% of the time it is installation error. Read through the pdf guide and see if you have missed anything. http://burgertuning.com/instructions/JB4PnP.pdf WM
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07-26-2015, 03:42 AM	#5
lolololol Colonel 96 Rep 2,204 Posts Drives: M4 F83 Join Date: Mar 2009 Location: The world iTrader: (4)	+1 .....or Could be a faulty unit ? __________________ Engine Mods: VF HEX Stage 2, ER Charge Pipes, VRSF Catless Downpipes, BMS Intakes and PCW Exhaust Mod Running Gear Mods: HRE Flow Form F01, Yellow Stuff pads. Cosmetic: Performance Grill, Lip Spoiler, Splitters, Side Skirt Extensions, Diffuser and BMS Tips
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07-26-2015, 03:53 AM	#6
Banners24b Second Lieutenant 13 Rep 244 Posts Drives: 335i SE Join Date: Aug 2013 Location: United Kingdom iTrader: (0)	Hi, Fez bought the unit from me, had it in my car for about a year didnt have any issues. I did get errors under WOT but new coil packs fixed that, a common Jb4 prob. Other than that i can only thinl the power connector isnt on properly in the green harness, or the leads have slid back slighty when put back into the ecu. I guess you can enter the jb menu ok? Which would show the jb4 being picked up ok
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07-26-2015, 04:24 AM	#7
windymissile Major 67 Rep 1,431 Posts Drives: 335i M Sport Join Date: Apr 2013 Location: UK iTrader: (0)	I would strip it all out and start again. It's so easy to bend a pin or pull a wire while putting the ECU lid back on. WM
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07-26-2015, 07:03 AM	#8
Fez335i Private First Class 10 Rep 187 Posts Drives: Blue E92 335i Join Date: Jun 2015 Location: Leeds, UK iTrader: (0)	Yeah I can enter the JB4 menu with the steering wheel controls, so the unit is being picked up. I'm going to try taking it all out and starting from the beginning again today, fingers crossed that works!
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07-26-2015, 10:29 AM	#10
Fez335i Private First Class 10 Rep 187 Posts Drives: Blue E92 335i Join Date: Jun 2015 Location: Leeds, UK iTrader: (0)	All sorted! I disconnected and reconnected everything.. It was plugged in the right way, so its a puzzle as to why it why it was causing issues.. But glad its working now Did a couple of runs, and to be honest it doesn't feel that much more powerful.. Will have to test it a bit more when its not pouring with rain..
	Appreciate 0 Quote

07-26-2015, 11:43 AM	#13
AWSAWS Colonel 283 Rep 2,343 Posts Drives: E92 GC Turbos, FBO, 335i DCT Join Date: Nov 2012 Location: Valhalla iTrader: (0)	Map 5 will be the best for you mate. If you have the usb cable then do some logs and see how much boost you run. __________________ GC Turbos, FBO, JB4, DCT, Port Meth injection, BMS Charge Pipe, NGK plugs. EBC brakes and pads, LED Angel lights, LED foglights, LCI rears OCC, Braided brake lines. Custom Diff Lockdown Kit, VTT inlets, TMAP, stage 2+ fuel pump 11.79@119mph (stock turbos) 11.74@129mph (GC Turbos)
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07-26-2015, 12:13 PM	#14
ArsE92 First Lieutenant 23 Rep 396 Posts Drives: E92 335i SE Join Date: Nov 2011 Location: North-West UK iTrader: (1)	The difference when on Map 5 is like night and day.
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07-26-2015, 01:49 PM	#15
Fez335i Private First Class 10 Rep 187 Posts Drives: Blue E92 335i Join Date: Jun 2015 Location: Leeds, UK iTrader: (0)	Did a few runs on Map 5 and the car deffo feels much faster now!! Thanks for the help everyone.. Next up front mount intercooler which I've also bought off a forum member!
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07-26-2015, 01:51 PM	#16
makkan00 Major General 886 Rep 9,097 Posts Drives: F83 and F36 Join Date: Dec 2011 Location: Essex iTrader: (56)	Can you run map 5 on a standard car? I though with each map, you were given list of mods. __________________ F36 Xdrive for her - HUD, park assist, heated steering wheel, rear camera, Apple car play F36 RWD for him - HK, M sports pack, GTS tail light, Apple car play
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