Help JB4 code

F22_Will · 08-31-2016, 09:57 AM

I need some help, i have a 2015 M235i, EWG, Fbo OBD CONNECTION. I just recently took of my jb4 for electrical warranty, today we reinstalled it, the car was running fine without the jb4, but when i installed jb4 the car starts to go limp & revs it self, i got a code(119404 Rail Pressure Signal) any ideas why this is happening? I currently on the latest firmware to. Thank you much appreciated

Jeff@TopGearSolutions · 08-31-2016, 09:58 AM

Have you reset everything already? Double checked connections?

F22_Will · 08-31-2016, 09:59 AM

Quote:

Originally Posted by Jeff@TopGearSolutions

Have you reset everything already? Double checked connections?

Gonna re check connections when im off work, is there any other possible reason why it would say fuel rail tho?? Thank you

Jadar · 08-31-2016, 10:11 AM

Quote:

Originally Posted by F22_Will

I need some help, i have a 2015 M235i, EWG, Fbo OBD CONNECTION. I just recently took of my jb4 for electrical warranty, today we reinstalled it, the car was running fine without the jb4, but when i installed jb4 the car starts to go limp & revs it self, i got a code(119404 Rail Pressure Signal) any ideas why this is happening? I currently on the latest firmware to. Thank you much appreciated

Clear the codes, Unhook the battery and the jb4 positive and then hook it all back up. See if that helps. Sometimes you get some strange codes. I got a differential sensor code once but it never came back.

mike@x-ph.com · 08-31-2016, 12:27 PM

As mentioned above, recheck install, clear the codes and see if you get that code again

F22_Will · 08-31-2016, 05:14 PM

Quote:

Originally Posted by mike@x-ph.com

As mentioned above, recheck install, clear the codes and see if you get that code again

I get this code
??

Bee Pee · 08-31-2016, 08:04 PM

Reads like your FF connections might be the issue.

Have you tried to remove FF harness and clear codes then drive it on say map 1 or map 2 to see if codes reappear ?

08-31-2016, 09:57 AM	#1
F22_Will New Member 2 Rep 11 Posts Drives: 2009 135i Join Date: Nov 2015 Location: Maryland iTrader: (0)	Help JB4 code I need some help, i have a 2015 M235i, EWG, Fbo OBD CONNECTION. I just recently took of my jb4 for electrical warranty, today we reinstalled it, the car was running fine without the jb4, but when i installed jb4 the car starts to go limp & revs it self, i got a code(119404 Rail Pressure Signal) any ideas why this is happening? I currently on the latest firmware to. Thank you much appreciated Attached Images
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08-31-2016, 09:58 AM	#2
Jeff@TopGearSolutions 3441 Rep 79,211 Posts Drives: C6 Z06, 09 335i, 10 335xi Join Date: Dec 2008 Location: www.TopGearSolutions.com iTrader: (37)	Have you reset everything already? Double checked connections?
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08-31-2016, 12:27 PM	#5
mike@x-ph.com Joint Chiefs of Staff 24190 Rep 190,804 Posts Drives: 07-335/12-328/18-M4/21-M4CP Join Date: Sep 2013 Location: Las Vegas iTrader: (23)	As mentioned above, recheck install, clear the codes and see if you get that code again __________________ Check out our current sale by clicking on this link! https://x-ph.com/sale/ Phone number 702-494-9435
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08-31-2016, 08:04 PM	#7
Bee Pee Brigadier General 1779 Rep 4,516 Posts Drives: AW M2 DCT Join Date: Jun 2010 Location: SW London iTrader: (3)	Reads like your FF connections might be the issue. Have you tried to remove FF harness and clear codes then drive it on say map 1 or map 2 to see if codes reappear ? __________________ Fettled M135i EB AT then AW M2 DCT - both gone but not forgotten: Current '22 X3M LCI..
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