Jb4 Limp Mode Please Help

RatedEM · 07-30-2016, 11:53 AM

After installing the jb4 last night, I decided to do a couple pulls and see what it was all about. After a single pull my car went right into limp mode, The chargepipe was okay and it's an ER so I doubt it's broken. Also I ran the code this morning doing the dash method and got 03FF.

19E92 · 07-30-2016, 02:03 PM

Did you mean 30FF? If so, that's a boost leak. Check your vacuum lines, chargepipe connections, intercooler connections, and DV connections.

RatedEM · 07-30-2016, 02:08 PM

Quote:

Originally Posted by 19E92

Did you mean 30FF? If so, that's a boost leak. Check your vacuum lines, chargepipe connections, intercooler connections, and DV connections.

no codes anymore after checking connection but now it won't start

CantCatchMe · 07-30-2016, 03:39 PM

Disconnect your negative battery cable from the rear and let it sit for 5 mins. Then plug it back in and try to start the car.

RatedEM · 07-30-2016, 04:45 PM

Quote:

Originally Posted by CantCatchMe

Disconnect your negative battery cable from the rear and let it sit for 5 mins. Then plug it back in and try to start the car.

Worked thank you so much, Any idea how to recalibrate the tsch for selecting a map

Johnny Boost · 07-30-2016, 04:57 PM

Quote:

Originally Posted by RatedEM

Worked thank you so much, Any idea how to recalibrate the tsch for selecting a map

It's speedo: 5 tach: 2 for your car.

RatedEM · 07-30-2016, 05:03 PM

Quote:

Originally Posted by Johnny Boost

Quote:

Originally Posted by RatedEM

Worked thank you so much, Any idea how to recalibrate the tsch for selecting a map

It's speedo: 5 tach: 2 for your car.

and then just hit down on the left side of the steering wheel until it resets? is that how it saves?

Mike@N54Tuning.com · 07-30-2016, 07:49 PM

You made a post in the N54 forum also? What is it, N54 or N55?

Mike

RatedEM · 07-30-2016, 07:49 PM

Quote:

Originally Posted by Mike@N54Tuning.com

You made a post in the N54 forum also? What is it, N54 or N55?

Mike

N54 Sorry

07-30-2016, 11:53 AM	#1
RatedEM First Lieutenant 66 Rep 335 Posts Drives: E93 335i Join Date: Jul 2016 Location: Philly iTrader: (0)	Jb4 Limp Mode Please Help After installing the jb4 last night, I decided to do a couple pulls and see what it was all about. After a single pull my car went right into limp mode, The chargepipe was okay and it's an ER so I doubt it's broken. Also I ran the code this morning doing the dash method and got 03FF.
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07-30-2016, 02:03 PM	#2
19E92 Private First Class 35 Rep 177 Posts Drives: '07 335i / '11 535i xDrive Join Date: May 2011 Location: Toronto, Canada iTrader: (2)	Did you mean 30FF? If so, that's a boost leak. Check your vacuum lines, chargepipe connections, intercooler connections, and DV connections. __________________ Monaco Blue E92 // BMS JB4 G5 ISO // BMS Backend Flash // Dual Cone Intake // ER Chargepipe // Dual HKS SSQV BOV Setup // BMW Performance Spoiler // 19" v710 Dolphin Grey // Aero Front Lip // M3 Sideskirts // Mtech Rear Bumper // Quad Tip Diffuser // Quad Exhaust //
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07-30-2016, 03:39 PM	#4
CantCatchMe Lieutenant Colonel 339 Rep 1,744 Posts Drives: 2012 335i xdrive msport(E92) Join Date: Aug 2014 Location: West Bloomfield, MI iTrader: (2)	Disconnect your negative battery cable from the rear and let it sit for 5 mins. Then plug it back in and try to start the car.
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07-30-2016, 07:49 PM	#8
Mike@N54Tuning.com Joint Chiefs of Staff 5026 Rep 116,150 Posts Drives: 2007 335i, 2015 M3 Join Date: Dec 2008 Location: N54tuning.com iTrader: (89)	You made a post in the N54 forum also? What is it, N54 or N55? Mike
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