Limp Mode WITH POWER

mayno · 09-05-2007, 11:33 PM

this just happened to me today:

was on the freeway and limp mode went on...thought to myself I wonder how fast the car is w/out the turbos engaged, so I floored it and the car took off quickly (heard the turbos spooling and everything) and didn't feel any limp mode hesitation. I then let off and floored it again and it took off w/ full power. when I let off the second time, limp mode went away.

exited the freeway and limp mode came on, at the stop sign, I floored it and it took off strong (turbos on and strong) while limp mode stayed on. tried it again at the next stop light and again it took off strongly. while i was slowing down to make a right, limp mode suddenly went off.

WTF is going on here?! has this happened to anyone here? I never once shut down the motor.

(i have procede 1.45...waiting until v2 arrives)

Dascamel · 09-05-2007, 11:35 PM

Yes, was also on the freeway. Didn't push it like you did, but unless I floored the limp mode sign would go completely away. Restarting fixed it though.

mayno · 09-06-2007, 01:35 AM

anyone else experience this?

NPDAN · 09-06-2007, 01:38 AM

Same exact shit happened to me (without all the flooring it stuff) on Saturday at the 405 / 101 interchange. I really think it has something to do with the heat....

schneid4323 · 09-06-2007, 01:41 AM

Ive restarted the car doing 130 before to get rid of limp mode..... sigh

mayno · 09-06-2007, 01:52 AM

Quote:

Originally Posted by NPDAN

Same exact shit happened to me (without all the flooring it stuff) on Saturday at the 405 / 101 interchange. I really think it has something to do with the heat....

what version of procede do you have? also, today wasn't that hot at all was about 80 degrees when it happened.

335Mat · 09-06-2007, 02:06 AM

Quote:

Originally Posted by schneid4323

Ive restarted the car doing 130 before to get rid of limp mode..... sigh

You restarted the car WHILE driving at 130mph ???

NPDAN · 09-06-2007, 02:36 AM

Quote:

Originally Posted by mayno

what version of procede do you have? also, today wasn't that hot at all was about 80 degrees when it happened.

V1.47

NPDAN · 09-06-2007, 02:36 AM

Quote:

Originally Posted by schneid4323

Ive restarted the car doing 130 before to get rid of limp mode..... sigh

Dude, your a f'n nut...

mayno · 09-06-2007, 02:57 AM

Quote:

Originally Posted by NPDAN

Dude, your a f'n nut...

agreed, that's crazy.

DreM3 · 09-06-2007, 03:05 AM

Happened to me too. Was cruising at 50mph of the freeway on 6th gear (ard1500rpm). It was raining and 80 degrees F. Wasn't accelerating or anything when I suddenly got tthe CEL. Though it showed that I was in reduced power mode, I was still making power as per usual.

Checked the C-reader and didn't get a code. Checked with my dealer's diagnostics the next day and found nothing that could have caused the CEL.

I haven't had a CEL since flashing to v1.47.. and it's been months.

M&M · 09-06-2007, 03:21 AM

If you still have full power after a CEL, then it's most likely an emission-related fault like catalyst efficiency or something.

DreM3 · 09-06-2007, 03:49 AM

Quote:

Originally Posted by M&M

If you still have full power after a CEL, then it's most likely an emission-related fault like catalyst efficiency or something.

If that were true, then shouldn't I be reading some kind of emissions value fault from the dealer's diagnostic?

Neema · 09-06-2007, 06:01 AM

i've got that "Engine Malfunction, Reduced Power!" warning light with the picture of an engine thats half colored in......i guess if thats "limp mode" then i've had it happen to me completely at random and even at times where im driving normally, had it happen about 4 times now over the course of 7 months. And I never lost power either, the first time it happened was within the first week or two i had the car, i paniced and pulled over, called bmw assit hoping for an answer but later learned that restarting the car would fix it. THOUGH, I am still bothered by what on earth is causing this ocassional CEL. I havent had any software until tonight so this was all on a stock engine, plus cat back exhuast.

turbocoins · 09-06-2007, 06:06 AM

Quote:

Originally Posted by schneid4323

Ive restarted the car doing 130 before to get rid of limp mode..... sigh

I thought that there was a safety that won't allow you to kill the motor at speed?? I used to turn off/on my 911 all the time at speed when I would throw a code from overrunning the TC system (I would forget to turn it off). But I thought the BMW won't let you do that. I guess I'll have to try.

Clem · 09-06-2007, 08:08 AM

Here too, only once. V1.47

I was 100 miles into a 150 mile trip and the yellow engine thing pops up. Still had full power. So I hit the button on end of the turn signal stalk and the symbol goes away! 30 seconds later it comes back. I repeat this a few times and the symbol stays gone. Happened on the way back too. Same deal, different gas. Weird.....

One of those so called "soft codes"? Must be really soft if I can clear it with the info button.

Clem · 09-06-2007, 08:10 AM

Quote:

Originally Posted by schneid4323

Ive restarted the car doing 130 before to get rid of limp mode..... sigh

I don't know about the rest of you, but both of my hands stay glued to the wheel at those speeds. You have large testes, my friend!

derek0480 · 09-06-2007, 09:08 AM

The car won't turn on or off at those speeds...In fact the car won't turn on or off unless it's close to a complete stop (or a slight roll if you have a 6MT)

If you don't believe me....try it...won't work.

achien · 09-06-2007, 09:18 AM

This is dangerous but it is not as scary as you guys think if the car is MT.

There is actually one of many crazy ways people think of in conserving gas, not in this case, of course.

Quote:

Originally Posted by schneid4323

Ive restarted the car doing 130 before to get rid of limp mode..... sigh

Quote:

Originally Posted by 335Mat

You restarted the car WHILE driving at 130mph ???

Quote:

Originally Posted by NPDAN

Dude, your a f'n nut...

Quote:

Originally Posted by mayno

agreed, that's crazy.

Quote:

Originally Posted by Clem

I don't know about the rest of you, but both of my hands stay glued to the wheel at those speeds. You have large testes, my friend!

NPDAN · 09-06-2007, 09:29 AM

Yea I dont know, call me conservative but, something about turning the car off when Im doing 130 just doesnt sound like good idea to me, But then again, never tried it.

Ninjaneer · 09-06-2007, 09:41 AM

Can't restart while rolling with an AT though

You can throw it in Neutral but you can't shut the engine down till the gear is in Park.

I wonder what's the difference between people who get limp mode but claim it goes away w/o restarting, and those that have to restart just to make it go away

leftcoastman · 09-06-2007, 10:51 AM

Quote:

Originally Posted by derek0480

The car won't turn on or off at those speeds...In fact the car won't turn on or off unless it's close to a complete stop (or a slight roll if you have a 6MT)

If you don't believe me....try it...won't work.

Might want to get your car checked out. I tested it on a deserted road and it turned off at 60mph.

Turning off at that speed, of course, is stupid because your brake boosting goes away. But I had to test it.

09-05-2007, 11:33 PM	#1
mayno Captain 77 Rep 613 Posts Drives: 2007 335i / 2018 BMW 430i Conv Join Date: Dec 2006 Location: So Cal iTrader: (0)	Limp Mode WITH POWER this just happened to me today: was on the freeway and limp mode went on...thought to myself I wonder how fast the car is w/out the turbos engaged, so I floored it and the car took off quickly (heard the turbos spooling and everything) and didn't feel any limp mode hesitation. I then let off and floored it again and it took off w/ full power. when I let off the second time, limp mode went away. exited the freeway and limp mode came on, at the stop sign, I floored it and it took off strong (turbos on and strong) while limp mode stayed on. tried it again at the next stop light and again it took off strongly. while i was slowing down to make a right, limp mode suddenly went off. WTF is going on here?! has this happened to anyone here? I never once shut down the motor. (i have procede 1.45...waiting until v2 arrives)
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09-05-2007, 11:35 PM	#2
Dascamel Lieutenant Colonel 50 Rep 1,664 Posts Drives: 2008 e92 M3, 2010 e91 328i Join Date: Jul 2007 Location: Bakersfield, CA iTrader: (0)	Yes, was also on the freeway. Didn't push it like you did, but unless I floored the limp mode sign would go completely away. Restarting fixed it though. __________________ 2008 E92 M3 Jerez Black,DCT,Fox Red ext,Prem,Tech,19", ipod/usb, CF roof and trim 2010 E91 328i Space Gray,Black int, M sport, most options 2007 Montego Blue 335i (retired)
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09-06-2007, 01:35 AM	#3
mayno Captain 77 Rep 613 Posts Drives: 2007 335i / 2018 BMW 430i Conv Join Date: Dec 2006 Location: So Cal iTrader: (0)	anyone else experience this?
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09-06-2007, 01:38 AM	#4
NPDAN Colonel 104 Rep 2,572 Posts Drives: AW DCT M3 Join Date: Feb 2007 Location: So.Cal iTrader: (7) Garage List 2008 E92 M3 [8.00] 07' E92 335i [0.00]	Same exact shit happened to me (without all the flooring it stuff) on Saturday at the 405 / 101 interchange. I really think it has something to do with the heat.... __________________
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09-06-2007, 01:41 AM	#5
schneid4323 Banned 356 Rep 1,134 Posts Drives: 335i, M6 Join Date: Dec 2006 Location: Dallas TX iTrader: (0)	Ive restarted the car doing 130 before to get rid of limp mode..... sigh
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09-06-2007, 03:05 AM	#11
DreM3 Private First Class 5 Rep 154 Posts Drives: G80-M3 Competition X Join Date: Jun 2007 Location: Bay Area, California iTrader: (0)	Happened to me too. Was cruising at 50mph of the freeway on 6th gear (ard1500rpm). It was raining and 80 degrees F. Wasn't accelerating or anything when I suddenly got tthe CEL. Though it showed that I was in reduced power mode, I was still making power as per usual. Checked the C-reader and didn't get a code. Checked with my dealer's diagnostics the next day and found nothing that could have caused the CEL. I haven't had a CEL since flashing to v1.47.. and it's been months.
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09-06-2007, 03:21 AM	#12
M&M Captain 116 Rep 750 Posts Drives: Boosted Beemers! Join Date: Mar 2007 Location: Johannesburg, South Africa iTrader: (0)	If you still have full power after a CEL, then it's most likely an emission-related fault like catalyst efficiency or something.
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09-06-2007, 06:01 AM	#14
Neema Major General 843 Rep 7,246 Posts Drives: a few BMWs Join Date: Dec 2006 Location: SoCal iTrader: (12)	i've got that "Engine Malfunction, Reduced Power!" warning light with the picture of an engine thats half colored in......i guess if thats "limp mode" then i've had it happen to me completely at random and even at times where im driving normally, had it happen about 4 times now over the course of 7 months. And I never lost power either, the first time it happened was within the first week or two i had the car, i paniced and pulled over, called bmw assit hoping for an answer but later learned that restarting the car would fix it. THOUGH, I am still bothered by what on earth is causing this ocassional CEL. I havent had any software until tonight so this was all on a stock engine, plus cat back exhuast. __________________ LTMW Widebody+1M front bumper+Slek CF Lip\|M3 Hood\|StopTech BBK\|M-Sport Rear Bumper+DD CF Diffuser\|Custom Recaro Seats\|KW V2\|BavX LS3\|M3 Side Skirts+Custom CF Lip\|BBS CHR 19x10.5+BBS Lugs\|LCI Taillights\|RD Sport Anti-Sway Bars\|GIAC S2\|ER Intercooler+CF Shroud+Charge Pipe\|Tial BOV\|Injen Intake\|MS downpipes\|Custom Exhaust\|BMS Oil Catch Can\|M3 DCT wheel+TiD CF Paddles\|BMW CF Trunk Spoiler\|Aluminum Pedals
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09-06-2007, 08:08 AM	#16
Clem Major 152 Rep 1,254 Posts Drives: 2010 E90 M3 AW/FR ESS VT2 Join Date: Nov 2006 Location: MD iTrader: (4)	Here too, only once. V1.47 I was 100 miles into a 150 mile trip and the yellow engine thing pops up. Still had full power. So I hit the button on end of the turn signal stalk and the symbol goes away! 30 seconds later it comes back. I repeat this a few times and the symbol stays gone. Happened on the way back too. Same deal, different gas. Weird..... One of those so called "soft codes"? Must be really soft if I can clear it with the info button.
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09-06-2007, 09:08 AM	#18
derek0480 DROPPIN' LOADS 33 Rep 245 Posts Drives: 2019 M5 Competition Join Date: Apr 2007 Location: in a meeting iTrader: (0) Garage List 2007 335i coupe [0.00]	The car won't turn on or off at those speeds...In fact the car won't turn on or off unless it's close to a complete stop (or a slight roll if you have a 6MT) If you don't believe me....try it...won't work. __________________
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09-06-2007, 09:29 AM	#20
NPDAN Colonel 104 Rep 2,572 Posts Drives: AW DCT M3 Join Date: Feb 2007 Location: So.Cal iTrader: (7) Garage List 2008 E92 M3 [8.00] 07' E92 335i [0.00]	Yea I dont know, call me conservative but, something about turning the car off when Im doing 130 just doesnt sound like good idea to me, But then again, never tried it. __________________
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09-06-2007, 09:41 AM	#21
Ninjaneer Shadow Warrior 159 Rep 2,095 Posts Drives: '07 335i Sedan Join Date: Aug 2006 Location: Florida iTrader: (0)	Can't restart while rolling with an AT though You can throw it in Neutral but you can't shut the engine down till the gear is in Park. I wonder what's the difference between people who get limp mode but claim it goes away w/o restarting, and those that have to restart just to make it go away __________________ 335i E90 / Arctic / Gray / Burl Walnut / Steptronic / ZPP / ZSP / Paddles / CA / Nav / PDC / OEM Spoiler Mods: PIAA Angel Eyes, Rear Fog Switch, Escort X50 Blue hardwire, 30% Charcoal Llumar Installing soon: Rear Power Outlets (Happy Robot mod!)
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