What fixed your Limp mode under WOT issue?

musa · 09-13-2016, 06:08 PM

This is an attempt to create a "database" of fixes for Limp mode issue occurring under Wide Open Throttle. The data will be a goldmine for folks chasing this issue needing to just reference the list of possible fixes, kinda of a check list to run down through.

Please just list what finally fixed the limp mode. No long stories and narrations etc. Just a summary.

Thanks!

Donutz · 09-13-2016, 07:24 PM

4th gear getting on the highway I hit limp mode. 30EF. Fixed with new vacuum lines and boost solenoids.

Gohan335i7 · 09-13-2016, 09:20 PM

Maybe an Oil cooler, or upgraded Oil cooler setup.

Walnut Blasts. Plugs, coils, injectors, any leaks of any kind...

Best of luck !

V8bait · 09-13-2016, 09:26 PM

Quote:

Originally Posted by Gohan335i7

Maybe an Oil cooler, or upgraded Oil cooler setup.

Walnut Blasts. Plugs, coils, injectors, any leaks of any kind...

Best of luck !

Fuel pump(s), tuning, vanos solenoids, dme, transmission issue(s), lol

stafebak · 09-14-2016, 02:10 PM

Seemingly misfiring causing limp mode. No codes, just limp mode. Running JB4. Replaced coils and plugs, haven't had it since.

techwhiz · 09-14-2016, 04:35 PM

Old plugs with a tune will send you into limp mode under WOT or significant load.
Change plugs as the first debug.

Riceball777 · 09-14-2016, 09:18 PM

As soon as I got a tune every time I went wide open throttle the car would go into limp mode. A walnut blasting /cleaning of the intake valves fixed everything.

Grand_hustle17 · 09-14-2016, 09:33 PM

Yea. Seems i get 15-25WOT and bam. Back to limp.... 10 of those WOT is wasted on logging

... ill be doing walnut blasting and hopefully i get 30WOT before misfires #dead

AZEgg3 · 09-16-2016, 04:47 PM

New Turbos! Seriously, I replaced vacuum lines, a cracked valve cover, tightened up charge pipe, etc. and finally determined that my front turbo wastegate was stuck open. The actuator wasnt moving when testing with vacuum. Dealer replaced both turbos under the BMW field notice/extended turbo warranty. No more 30FF for me.

Jklad · 09-18-2016, 04:04 PM

Let's see...one time it was a separated fmic pipe, another time it was a not fully seated cp connection at the tb, a few times it's been plugs or coil packs, twice its been vanos Solenoids, two times it was hpfp related, once it was lp sensor, yet another time it was vacuum lines, oh and then another time my dme got fried...this is all from 38k to 130k miles.

Turbo_power4ever · 09-18-2016, 04:34 PM

the only time I had limp mode at WOT was about a year ago. it gave me codes stating injector shutoff. I ran fuel injector cleaner twice with two fillups of gas and then I bought a hpfp cuz I thought I needed it, but I was lazy and months passed and before I installed the hpfp I noticed I would go WOT and no more limp mode so I returned the hpfp. recently I turned up the boost to 19psi and no issues. I wonder if the fuel injector cleaner actually did anything or not?? but worth a try I guess.

N54CoupeHP · 09-18-2016, 05:05 PM

A step colder spark plugs

joeinsd · 09-19-2016, 12:36 PM

I removed my BEF and forgot to set JB4 back to 4/3 from 4/2. Couldn't figure it out for 3 days. Lol.

lightmanek · 09-20-2016, 04:44 PM

Quote:

Originally Posted by AZEgg3

New Turbos! Seriously, I replaced vacuum lines, a cracked valve cover, tightened up charge pipe, etc. and finally determined that my front turbo wastegate was stuck open. The actuator wasnt moving when testing with vacuum. Dealer replaced both turbos under the BMW field notice/extended turbo warranty. No more 30FF for me.

Same for me!
I had intermittent 30FF and when modifying my turbos to Stage 2 workshop checked actuators and both of them were leaking, one a bit and the other much more. Replacing them with new units fixed all 30FF issues (and new turbo made me smile a lot!)

musa · 06-13-2017, 08:32 PM

Finally got it fixed by replacing the DME. After the fact I learned that reflashing the DME at the dealer would probably have fixed it too. The car runs fantastic now - not just the WOT is completely gone but the overall performance of the car has improved aplenty.

The error code was always 5E19 - DSC CAN DME/DDE Torque Reduction Not Possible;engine torque not adjustable.

feuer · 06-13-2017, 10:40 PM

New turbos fixed it on mine n54

Mezzy113 · 06-14-2017, 11:19 AM

Quote:

Originally Posted by Donutz

4th gear getting on the highway I hit limp mode. 30EF. Fixed with new vacuum lines and boost solenoids.

Boost solenoids did it for me. I don't recall what the specific code at this point but it was related to overboost.

Texus · 06-16-2017, 07:02 PM

First time - HPFP
Second time - bad coil

Socket · 06-16-2017, 11:26 PM

O2 sensors

Eternal_SIR · 06-17-2017, 08:49 PM

Mine would only go into limp.mode when in sport mode. Regular D was perfectly fine. Cleaned out my exhaust vanos since I was getting that code. So far so good

grennx · 08-17-2017, 09:26 PM

Suffered from 4 years of track limp modes, solved with new boost solenoids. Walnut cleaning did not hurt.

Limp is back with ABS pump failure - occurs under heavy turn one breaking followed by WOT toward track out. Hope ABS rebuild solves problem.

Julian2485 · 08-17-2017, 10:11 PM

How would one know if boost solenoids are going bad ?

09-13-2016, 06:08 PM	#1
musa Captain 457 Rep 952 Posts Drives: F86, E92, E53, E39. Join Date: Jul 2014 Location: Bellevue, WA iTrader: (0)	What fixed your Limp mode under WOT issue? This is an attempt to create a "database" of fixes for Limp mode issue occurring under Wide Open Throttle. The data will be a goldmine for folks chasing this issue needing to just reference the list of possible fixes, kinda of a check list to run down through. Please just list what finally fixed the limp mode. No long stories and narrations etc. Just a summary. Thanks! Last edited by musa; 09-13-2016 at 11:16 PM..
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09-13-2016, 07:24 PM	#2
Donutz Lieutenant 140 Rep 476 Posts Drives: 335i Join Date: Sep 2015 Location: Toronto, eh iTrader: (2)	4th gear getting on the highway I hit limp mode. 30EF. Fixed with new vacuum lines and boost solenoids.
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09-13-2016, 09:20 PM	#3
Gohan335i7 Captain 312 Rep 766 Posts Drives: 335i Join Date: Nov 2015 Location: Florida iTrader: (0) Garage List 2010 335i [10.00]	Maybe an Oil cooler, or upgraded Oil cooler setup. Walnut Blasts. Plugs, coils, injectors, any leaks of any kind... Best of luck !
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09-14-2016, 02:10 PM	#5
stafebak Enlisted Member 10 Rep 48 Posts Drives: 2008 335XI Coupe Join Date: Aug 2015 Location: Saint Paul, Minnesota iTrader: (0)	Seemingly misfiring causing limp mode. No codes, just limp mode. Running JB4. Replaced coils and plugs, haven't had it since.
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09-14-2016, 04:35 PM	#6
techwhiz Colonel 458 Rep 2,972 Posts Drives: e90 335i Sedan - Arctic Join Date: Feb 2012 Location: Bay Area, Ca iTrader: (4)	Old plugs with a tune will send you into limp mode under WOT or significant load. Change plugs as the first debug. __________________ Arctic Metallic\CF Splitters, Spoiler, Mirror Covers\LED Tails\LSD\Tinted\Coded\Apex Square SM10-19"\LED Angel Eyes\Gloss Black Grill\Integrated V1 & Galaxy Tab\M-Performance Brakes\Cobb Tuned\xHP Flash\Resonator Removed and -> is your friend.
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09-14-2016, 09:18 PM	#7
Riceball777 Lieutenant 168 Rep 466 Posts Drives: S2000 618whp/ e90 335i Join Date: Jul 2012 Location: Los Angeles iTrader: (0)	As soon as I got a tune every time I went wide open throttle the car would go into limp mode. A walnut blasting /cleaning of the intake valves fixed everything. __________________ 2007 e90 335i pure stage 2 DD turbos, rb inlets Last edited by Riceball777; 09-14-2016 at 11:16 PM..
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09-14-2016, 09:33 PM	#8
Grand_hustle17 Major 194 Rep 1,173 Posts Drives: E90 335i Join Date: Aug 2015 Location: Maryland iTrader: (0)	Yea. Seems i get 15-25WOT and bam. Back to limp.... 10 of those WOT is wasted on logging ... ill be doing walnut blasting and hopefully i get 30WOT before misfires #dead
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09-16-2016, 04:47 PM	#9
AZEgg3 335 Newb 5 Rep 28 Posts Drives: 2010 335i XDrive M-Sport Join Date: Aug 2014 Location: Phoenix AZ iTrader: (0)	New Turbos! Seriously, I replaced vacuum lines, a cracked valve cover, tightened up charge pipe, etc. and finally determined that my front turbo wastegate was stuck open. The actuator wasnt moving when testing with vacuum. Dealer replaced both turbos under the BMW field notice/extended turbo warranty. No more 30FF for me.
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09-18-2016, 04:04 PM	#10
Jklad Lieutenant Colonel 427 Rep 1,643 Posts Drives: 2007 335i Coupe Join Date: Nov 2010 Location: Palatine, IL iTrader: (0)	Let's see...one time it was a separated fmic pipe, another time it was a not fully seated cp connection at the tb, a few times it's been plugs or coil packs, twice its been vanos Solenoids, two times it was hpfp related, once it was lp sensor, yet another time it was vacuum lines, oh and then another time my dme got fried...this is all from 38k to 130k miles. __________________ 2007 E92 335i MT
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09-18-2016, 04:34 PM	#11
Turbo_power4ever Captain 95 Rep 607 Posts Drives: Fbo blacked e92 Join Date: Feb 2015 Location: Nky iTrader: (2)	the only time I had limp mode at WOT was about a year ago. it gave me codes stating injector shutoff. I ran fuel injector cleaner twice with two fillups of gas and then I bought a hpfp cuz I thought I needed it, but I was lazy and months passed and before I installed the hpfp I noticed I would go WOT and no more limp mode so I returned the hpfp. recently I turned up the boost to 19psi and no issues. I wonder if the fuel injector cleaner actually did anything or not?? but worth a try I guess.
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09-18-2016, 05:05 PM	#12
N54CoupeHP Captain 71 Rep 648 Posts Drives: 2012 335is Join Date: Aug 2011 Location: United States iTrader: (0) Garage List 2012 335is [9.66]	A step colder spark plugs __________________ 2012 E92 335is \| BSM/Coral Red \| Moonroof Delete \| 6MT BQ Tuning \| ar design DPs \| M Performance Spoiler \| Michelin PSS \| Cyba Ram Air \| VRSF CP \| Fuel-It! Stg 2 LPFP Split Armrest \| LUX Reverse Lights \| Rear Fog Lights Enabled TOOK DELIVERY 24 OCT 2011 [FIRST PICS] [INTERIOR PICS]
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09-19-2016, 12:36 PM	#13
joeinsd Captain 288 Rep 899 Posts Drives: Stock 2010 e92 335i M Sport Join Date: Apr 2015 Location: San Diego iTrader: (9)	I removed my BEF and forgot to set JB4 back to 4/3 from 4/2. Couldn't figure it out for 3 days. Lol.
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06-13-2017, 08:32 PM	#15
musa Captain 457 Rep 952 Posts Drives: F86, E92, E53, E39. Join Date: Jul 2014 Location: Bellevue, WA iTrader: (0)	Finally got it fixed by replacing the DME. After the fact I learned that reflashing the DME at the dealer would probably have fixed it too. The car runs fantastic now - not just the WOT is completely gone but the overall performance of the car has improved aplenty. The error code was always 5E19 - DSC CAN DME/DDE Torque Reduction Not Possible;engine torque not adjustable.
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06-13-2017, 10:40 PM	#16
feuer Major General 4310 Rep 9,230 Posts Drives: wife crazy! Join Date: Apr 2015 Location: Chicago, IL iTrader: (5)	New turbos fixed it on mine n54
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06-16-2017, 07:02 PM	#18
Texus Enlisted Member 23 Rep 43 Posts Drives: 2008 e90 335i Join Date: Dec 2016 Location: Texas iTrader: (0)	First time - HPFP Second time - bad coil
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06-16-2017, 11:26 PM	#19
Socket Lieutenant General 4777 Rep 11,971 Posts Drives: 335i Join Date: Nov 2014 Location: Australia iTrader: (4) Garage List 2008 BMW E92 [0.00]	O2 sensors
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06-17-2017, 08:49 PM	#20
Eternal_SIR Private First Class 49 Rep 162 Posts Drives: 2007 335I RWD Coupe Join Date: Jul 2015 Location: Surrey, BC iTrader: (1)	Mine would only go into limp.mode when in sport mode. Regular D was perfectly fine. Cleaned out my exhaust vanos since I was getting that code. So far so good
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08-17-2017, 09:26 PM	#21
grennx New Member 3 Rep 19 Posts Drives: '07 E92 335i Join Date: May 2011 Location: Montclair NJ iTrader: (0)	Boost solenoids Suffered from 4 years of track limp modes, solved with new boost solenoids. Walnut cleaning did not hurt. Limp is back with ABS pump failure - occurs under heavy turn one breaking followed by WOT toward track out. Hope ABS rebuild solves problem.
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08-17-2017, 10:11 PM	#22
Julian2485 Major 113 Rep 1,340 Posts Drives: Black lci e90 335 xdrive Join Date: Sep 2013 Location: New york iTrader: (1)	How would one know if boost solenoids are going bad ?
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