Big engine light!!!!

oma3710 · 12-04-2012, 07:44 PM

The past two days I've gotten the big engine light. I'm not getting any error codes. And I turn car off/on and it goes away. What could be causing this? And is there anything I can do to stop this from happening again?

Dmacc · 12-04-2012, 08:04 PM

Quote:

Originally Posted by oma3710

The past two days I've gotten the big engine light. I'm not getting any error codes. And I turn car off/on and it goes away. What could be causing this? And is there anything I can do to stop this from happening again?

You should try data logging and getting it to happen again while logging

Beemw335 · 12-04-2012, 08:22 PM

There has to be codes...

oma3710 · 12-04-2012, 09:03 PM

Quote:

Originally Posted by Beemw335

There has to be codes...

No codes. I deactivate jb4 and don't get any codes.

Eric335 · 12-04-2012, 09:11 PM

The big engine light is when someone pranks you by putting a bigger engine into your car. Check and see if you have a V10, datalog, and come back.

Eleventeen · 12-04-2012, 10:34 PM

Quote:

Originally Posted by oma3710

No codes. I deactivate jb4 and don't get any codes.

Just to verify, you don't have the auto-clear feature on, correct?

eloo · 12-04-2012, 11:14 PM

Quote:

Originally Posted by Eric335

The big engine light is when someone pranks you by putting a bigger engine into your car. Check and see if you have a V10, datalog, and come back.

This is the upgrade to M3 light you're thinking of.

caseybc · 12-05-2012, 01:57 AM

Buy a different car?

pwrdbynel · 12-05-2012, 02:37 AM

Make sure you don't have jb4 on auto erase. It automatically erase all your engine codes. Turn you jb4 back on and make sure auto clear / erase is off and read the codes.

oma3710 · 12-05-2012, 06:49 AM

Quote:

Originally Posted by pwrdbynel

Make sure you don't have jb4 on auto erase. It automatically erase all your engine codes. Turn you jb4 back on and make sure auto clear / erase is off and read the codes.

Turned the autoclear off this morning. I tried to get on it this morning but nothing. Going to try this afternoon.

AK 335i · 12-05-2012, 09:47 AM

Quote:

Originally Posted by Eric335

The big engine light is when someone pranks you by putting a bigger engine into your car. Check and see if you have a V10, datalog, and come back.

ok tried again and datalogged... you were right

Jeff@TopGearSolutions · 12-05-2012, 10:36 AM

Misfires would be my guess. How old are the spark plugs?

oma3710 · 12-05-2012, 10:55 AM

Quote:

Originally Posted by Jeff@topgearsolutions

Misfires would be my guess. How old are the spark plugs?

not even 10k miles on them. i think it may be the coils. are coils covered under 100k warranty?

BlueBimmer · 12-05-2012, 03:23 PM

Quote:

Originally Posted by oma3710

not even 10k miles on them. i think it may be the coils. are coils covered under 100k warranty?

Need to know this as well, I changed plugs under 50k but not coils, are coils covered under gold warranty?

X-con335i · 12-05-2012, 04:16 PM

Same thing happend to me man. Then i search and find out i have a boost leak

Eric335 · 12-05-2012, 09:14 PM

Quote:

Originally Posted by smi1gj

ok tried again and datalogged... you were right

Looks like your engine light came on when your RPMs didnt increase. In that case, your VTEC is failing to kick in.

Oh, and SRT-10? Really? Dream bigger, my man....

islandboy_671 · 12-06-2012, 06:57 AM

That Light came on when one of the coils were bad. Took it the dealer and sure enough it was one bad coil.

sickem · 12-06-2012, 11:01 AM

could be any number of things...VANOS solenoids, misfires, etc. now with the code eraser turned off it should only be a matter of time before it comes up again. update us then.

EDIT: drawings are funny by the way!

12-04-2012, 07:44 PM	#1
oma3710 Major 195 Rep 1,282 Posts Drives: ? Join Date: Apr 2012 Location: Simpsonville, SC iTrader: (1)	Big engine light!!!! The past two days I've gotten the big engine light. I'm not getting any error codes. And I turn car off/on and it goes away. What could be causing this? And is there anything I can do to stop this from happening again? __________________ __________________ SOLD! X5 35i sdrive- JB4 SOLD! 435i- Cary Jordan E30 Tune~ Dinan Turbo~ BM3 trans tune~ XDI-35~ 3.5 T-map sensor~ VRSF HD FMIC~ VRSF Chargepipe~ VRSF Catless Downpipe~ CTS Intake~ FTP boost pipe~ FTP intake inlet~ FTP oil catch can~ Turbosmart dual bov~
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12-04-2012, 08:22 PM	#3
Beemw335 Colonel 62 Rep 2,013 Posts Drives: 335i Join Date: Mar 2011 Location: My car is my home iTrader: (2)	There has to be codes...
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12-04-2012, 09:11 PM	#5
Eric335 Colonel 130 Rep 2,490 Posts Drives: 2007 E92 SG 335i 6MT Join Date: Apr 2011 Location: SW Florida iTrader: (0) Garage List 2007 BMW 335i [7.66]	The big engine light is when someone pranks you by putting a bigger engine into your car. Check and see if you have a V10, datalog, and come back. __________________ Last edited by Eric335; 12-04-2012 at 10:38 PM..
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12-05-2012, 01:57 AM	#8
caseybc Average Member 3 Rep 61 Posts Drives: 335i M sport Join Date: Sep 2009 Location: Vancouver Island iTrader: (0)	Buy a different car?
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12-05-2012, 02:37 AM	#9
pwrdbynel Private First Class 13 Rep 197 Posts Drives: 335i Coupe Join Date: Apr 2008 Location: SoCal iTrader: (1)	Make sure you don't have jb4 on auto erase. It automatically erase all your engine codes. Turn you jb4 back on and make sure auto clear / erase is off and read the codes.
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12-05-2012, 10:36 AM	#12
Jeff@TopGearSolutions 3441 Rep 79,212 Posts Drives: C6 Z06, 09 335i, 10 335xi Join Date: Dec 2008 Location: www.TopGearSolutions.com iTrader: (37)	Misfires would be my guess. How old are the spark plugs?
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12-05-2012, 04:16 PM	#15
X-con335i Private 1 Rep 54 Posts Drives: 07 bmw e90 335i Join Date: Jul 2012 Location: San francisco CA iTrader: (0)	Same thing happend to me man. Then i search and find out i have a boost leak
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12-06-2012, 06:57 AM	#17
islandboy_671 ///BA 3 Rep 15 Posts Drives: 08 335i premium sport package Join Date: Dec 2011 Location: NOVA iTrader: (0) Garage List 2008 BMW E90 335i [0.00]	That Light came on when one of the coils were bad. Took it the dealer and sure enough it was one bad coil.
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12-06-2012, 11:01 AM	#18
sickem Freude am fahren 71 Rep 1,968 Posts Drives: E90 N54 Join Date: Mar 2010 Location: Doylestown, PA iTrader: (4) Garage List 2008 BMW 335i E90 [6.50]	could be any number of things...VANOS solenoids, misfires, etc. now with the code eraser turned off it should only be a matter of time before it comes up again. update us then. EDIT: drawings are funny by the way! __________________ Cobb E40 PROtune by Jake@PTF/RR catless DPs/aFe DCI/ETS 5" FMIC/ER CP/Forge DVs/Alpina B3 TCU flash/BMW Perf. Exhaust./BMW Performance Style 313s/M-Tech Rear
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