Service Engine Soon Light = Sputter

JStang · 08-19-2011, 07:39 AM

I was on my way home from the Bucs Patriots game last night and heard what quite possibly could have been the loudest S2000 (if not car) on the planet. So I downshift to catch up and and all of a sudden my Service Engine Soon light came on and the car started sputtering. I never knew what you guys were talking about by "limp mode" but I'm assuming this is what you are talking about. I was probably only at about 50-60% throttle when it happened.

I woke up this morning and started the car and no service engine soon light upon start up but I did notice a strong exhaust smell. I let the car warm up and gave it about half throttle at about 50 mph and the same thing happened. Service engine soon light and sputtering.

The car has 37,500 miles on it and I am not nor have I ever been tuned. The HPFP and injector recall was taken care of about 6 months ago. Thankfully, my warranty expires in 5 days so it will be covered and I am going to try to get into my dealership today if possible. What do you guys think could be the issue?

kymedic25 · 08-19-2011, 07:42 AM

Quote:

Originally Posted by JStang

I was on my way home from the Bucs Patriots game last night and heard what quite possibly could have been the loudest S2000 (if not car) on the planet. So I downshift to catch up and and all of a sudden my Service Engine Soon light came on and the car started sputtering. I never knew what you guys were talking about by "limp mode" but I'm assuming this is what you are talking about. I was probably only at about 50-60% throttle when it happened.

I woke up this morning and started the car and no service engine soon light upon start up but I did notice a strong exhaust smell. I let the car warm up and gave it about half throttle at about 50 mph and the same thing happened. Service engine soon light and sputtering.

The car has 37,500 miles on it and I am not nor have I ever been tuned. The HPFP and injector recall was taken care of about 6 months ago. Thankfully, my warranty expires in 5 days so it will be covered and I am going to try to get into my dealership today if possible. What do you guys think could be the issue?

Mine had a kink in the turbo hoses.

nichojo · 08-19-2011, 08:57 AM

Did it shutter/shake when you gave it power or did it simply run smooth but with degraded power? The former sounds like my misfire, the latter sounds like limp.

JStang · 08-19-2011, 09:16 AM

Yeah it would shake when moderate throttle was applied but it also wasn't wanting to accelerate much.

kymedic25 · 08-19-2011, 09:26 AM

Quote:

Originally Posted by JStang

Yeah it would shake when moderate throttle was applied but it also wasn't wanting to accelerate much.

Mine had no shake, just the decreased power.

nichojo · 08-19-2011, 10:37 AM

Quote:

Originally Posted by JStang

Yeah it would shake when moderate throttle was applied but it also wasn't wanting to accelerate much.

I'm thinking misfire... the techs at BMW said once they cleared the codes on mine it magically started working fine. Who knows...

JStang · 08-19-2011, 12:13 PM

Just dropped it off at the dealership. I will let you know what the verdict is.

ItsmeX5 · 08-19-2011, 01:59 PM

goodluck, lets hope they fix it permanently today and not have the problem come up again a few days After the warranty...i would drive the car as much as possible once u get it back and keep doing the same thing to assure its fixed

JStang · 08-19-2011, 04:30 PM

Just an ignition coil.

Phil335i · 08-19-2011, 06:34 PM

Just happened to me last week on my 335i with 48K miles. I was accelerating and it briefly felt like the engine was missing, like a plug wasn't firing and the SES light came on. Turned out to be the ignition coil and O2 sensor were bad and were replaced.

tahoerdr · 08-20-2011, 01:07 AM

Sounds very similar to an issue that just came up for me today. It runs fine until +3psi and higher, then sputters with very little power throughout the power band. SES light flashing. If I accelerate at 70% throttle from 0-80mph, it will run especially rough for 1-2 minutes afterward, then improve slightly. I'm not getting any codes on procede's software. I'm out of warranty so I'm hoping I can diagnose/locate a bad coil and/or O2 sensor on my own. I did a DP install 200 miles ago, which involved unscrewing the O2 sensors, loading the wires with lots of torque. I'm worried I damaged the wiring on one of those sensors.

-2008 335xi AT 51k miles
-Procede v5 rev2a -Map 6-14
-updated to 7-29 maps & adaptation resets with no improvement
-catless DP's installed 200 miles back - ran great till today.
-Chevron injector cleaner used 1500mi back
-Oil change 200mi back

flawlesskid · 08-22-2011, 11:38 PM

I've had this happen 2 times and i never had it diagnosed. The first time was just before i fixed a vacuum leak. Didn't happen again for a while so i figured the vacuum leak was the cause. Last time it happened was just before i did a fuel treatment and it hasn't happened since. I'm waiting for it to happen again and i'm taking it in for diagnostics.

08-19-2011, 07:39 AM	#1
JStang Brigadier General 562 Rep 3,625 Posts Drives: FDB M3 CS Join Date: Dec 2010 Location: St. Petersburg, FL iTrader: (9)	Service Engine Soon Light = Sputter I was on my way home from the Bucs Patriots game last night and heard what quite possibly could have been the loudest S2000 (if not car) on the planet. So I downshift to catch up and and all of a sudden my Service Engine Soon light came on and the car started sputtering. I never knew what you guys were talking about by "limp mode" but I'm assuming this is what you are talking about. I was probably only at about 50-60% throttle when it happened. I woke up this morning and started the car and no service engine soon light upon start up but I did notice a strong exhaust smell. I let the car warm up and gave it about half throttle at about 50 mph and the same thing happened. Service engine soon light and sputtering. The car has 37,500 miles on it and I am not nor have I ever been tuned. The HPFP and injector recall was taken care of about 6 months ago. Thankfully, my warranty expires in 5 days so it will be covered and I am going to try to get into my dealership today if possible. What do you guys think could be the issue?
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08-19-2011, 08:57 AM	#3
nichojo Lieutenant 14 Rep 417 Posts Drives: 2011 328i Join Date: Oct 2010 Location: Atlanta, GA iTrader: (1)	Did it shutter/shake when you gave it power or did it simply run smooth but with degraded power? The former sounds like my misfire, the latter sounds like limp.
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08-19-2011, 09:16 AM	#4
JStang Brigadier General 562 Rep 3,625 Posts Drives: FDB M3 CS Join Date: Dec 2010 Location: St. Petersburg, FL iTrader: (9)	Yeah it would shake when moderate throttle was applied but it also wasn't wanting to accelerate much.
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08-19-2011, 12:13 PM	#7
JStang Brigadier General 562 Rep 3,625 Posts Drives: FDB M3 CS Join Date: Dec 2010 Location: St. Petersburg, FL iTrader: (9)	Just dropped it off at the dealership. I will let you know what the verdict is.
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08-19-2011, 01:59 PM	#8
ItsmeX5 Lieutenant 22 Rep 458 Posts Drives: 2018 X5, 2013 M5, 2007 SL55 Join Date: Jul 2011 Location: Los Angeles, CA iTrader: (2)	goodluck, lets hope they fix it permanently today and not have the problem come up again a few days After the warranty...i would drive the car as much as possible once u get it back and keep doing the same thing to assure its fixed
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08-19-2011, 04:30 PM	#9
JStang Brigadier General 562 Rep 3,625 Posts Drives: FDB M3 CS Join Date: Dec 2010 Location: St. Petersburg, FL iTrader: (9)	Just an ignition coil.
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08-19-2011, 06:34 PM	#10
Phil335i Private First Class 40 Rep 118 Posts Drives: 2020 M2 Comp Join Date: Jun 2006 Location: Huntsville, Alabama USA iTrader: (0)	Just happened to me last week on my 335i with 48K miles. I was accelerating and it briefly felt like the engine was missing, like a plug wasn't firing and the SES light came on. Turned out to be the ignition coil and O2 sensor were bad and were replaced. __________________ 2020 M2 Comp \| HS \| Blue Trim \| 6MT \| Exec Pkg \| Black Wheels 2007 335i \| Crimson \| Saddle Brown \| 6MT \| Sport \| Dinan S1 Pkg \| Active Steering \| Premium \| Nav \| CA \| PDC \| Sat Radio SOLD
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08-20-2011, 01:07 AM	#11
tahoerdr Private First Class 7 Rep 102 Posts Drives: E92 335xi Join Date: Apr 2008 Location: Bay Area, CA iTrader: (3)	Sounds very similar to an issue that just came up for me today. It runs fine until +3psi and higher, then sputters with very little power throughout the power band. SES light flashing. If I accelerate at 70% throttle from 0-80mph, it will run especially rough for 1-2 minutes afterward, then improve slightly. I'm not getting any codes on procede's software. I'm out of warranty so I'm hoping I can diagnose/locate a bad coil and/or O2 sensor on my own. I did a DP install 200 miles ago, which involved unscrewing the O2 sensors, loading the wires with lots of torque. I'm worried I damaged the wiring on one of those sensors. -2008 335xi AT 51k miles -Procede v5 rev2a -Map 6-14 -updated to 7-29 maps & adaptation resets with no improvement -catless DP's installed 200 miles back - ran great till today. -Chevron injector cleaner used 1500mi back -Oil change 200mi back
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08-22-2011, 11:38 PM	#12
flawlesskid Private First Class 4 Rep 107 Posts Drives: 2007 BMW 335i Sport Package Join Date: Sep 2010 Location: Greensboro North Carolina iTrader: (0)	I've had this happen 2 times and i never had it diagnosed. The first time was just before i fixed a vacuum leak. Didn't happen again for a while so i figured the vacuum leak was the cause. Last time it happened was just before i did a fuel treatment and it hasn't happened since. I'm waiting for it to happen again and i'm taking it in for diagnostics. __________________
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