Having an issue with my jb4/ code p0276

Crimedog04 · 04-16-2015, 05:12 PM

To start off, I have a 2011 335xi sedan. I installed my jb4 2 weeks ago, no issues, everything was running fine. Today I went to install the flex fuel sensor; got it all hooked up into the harness, one pin into hole #21, crimped a dsub connector on the bare wire part and hooked it into hole #4 per Jon at BMS. I was having trouble getting that back engine cover off to get to the mass fuel sensor, so I left the connectors in the ECU box, put everything back together, fired it up and immediately threw a code and the jb4 wont work at all. Borrowed my friends obdII reader and it came back p0237. I did a quick search and it seems that code is related to the charge piping/tmap sensor which I checked, and everything is connected properly.

I'm thinking that it could be related to the fact that the FF sensor is hooked into the harness, but not connected to anything?

Any insight? Thanks.

Edit: not sure why I put p0276 in title...definitely p0237

Crimedog04 · 04-16-2015, 06:07 PM

Also...anyone know any shops that are familiar with the JB4 that aren't too far away from Albany, NY (jersey, ct, ect...)

weehe126 · 04-16-2015, 08:11 PM

So you cut the wires and tied in the new FF wires, and didn't plug in the sensor? That is probably your problem and you should attach it asap.

04-16-2015, 05:12 PM	#1
Crimedog04 Private 2 Rep 60 Posts Drives: 2011 335xi 6MT Join Date: Jan 2015 Location: Albany, NY iTrader: (0)	Having an issue with my jb4/ code p0276 To start off, I have a 2011 335xi sedan. I installed my jb4 2 weeks ago, no issues, everything was running fine. Today I went to install the flex fuel sensor; got it all hooked up into the harness, one pin into hole #21, crimped a dsub connector on the bare wire part and hooked it into hole #4 per Jon at BMS. I was having trouble getting that back engine cover off to get to the mass fuel sensor, so I left the connectors in the ECU box, put everything back together, fired it up and immediately threw a code and the jb4 wont work at all. Borrowed my friends obdII reader and it came back p0237. I did a quick search and it seems that code is related to the charge piping/tmap sensor which I checked, and everything is connected properly. I'm thinking that it could be related to the fact that the FF sensor is hooked into the harness, but not connected to anything? Any insight? Thanks. Edit: not sure why I put p0276 in title...definitely p0237 Last edited by Crimedog04; 04-16-2015 at 05:17 PM..
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04-16-2015, 08:11 PM	#3
weehe126 Brigadier General 1161 Rep 3,189 Posts Drives: 2017 340i Join Date: Apr 2014 Location: San Antonio iTrader: (2)	So you cut the wires and tied in the new FF wires, and didn't plug in the sensor? That is probably your problem and you should attach it asap.
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04-16-2015, 06:07 PM	#2
Crimedog04 Private 2 Rep 60 Posts Drives: 2011 335xi 6MT Join Date: Jan 2015 Location: Albany, NY iTrader: (0)	Also...anyone know any shops that are familiar with the JB4 that aren't too far away from Albany, NY (jersey, ct, ect...)
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