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E90/E91/E92/E93 (2006 - 2013)
The E9X is the 4th evolution of the BMW 3 series including a highly tuned twin turbo 335i variant pushing out 300hp and 300 ft. lbs. of torque. BMW continues to show that it sets the bar for true driving performance! -- View the E9X Wiki

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  #1  
Old 04-27-2013, 01:32 PM
BimmerBoy1986 BimmerBoy1986 is offline
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Exclamation 2007 335i Sputtering

Ok so about three weeks ago while I was driving home one day engine started to sputter at 2500 rpms and a very bad sounding idle. Stopped and got the code read(Already had code P2402 DMTL Pump) so no new code. Started her back up and idle was good and the sputter was gone. A week later same thing happened so I turned off the engine and restated it and once again the sputter was gone. Has happened twice more since then. Anyone have a clue

Bad Plugs?
Bad Injectors?
HPFP ?
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  #2  
Old 04-27-2013, 02:31 PM
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CALWATERBOY CALWATERBOY is offline
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Quote:
Originally Posted by BimmerBoy1986 View Post
Ok so about three weeks ago while I was driving home one day engine started to sputter at 2500 rpms and a very bad sounding idle. Stopped and got the code read(Already had code P2402 DMTL Pump) so no new code. Started her back up and idle was good and the sputter was gone. A week later same thing happened so I turned off the engine and restated it and once again the sputter was gone. Has happened twice more since then. Anyone have a clue

Bad Plugs?
Bad Injectors?
HPFP ?

What's the mileage?
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  #3  
Old 04-27-2013, 11:29 PM
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galahad05 galahad05 is offline
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For me, I had a similar experience, though it ended up much worse than yours (is now).
I ended up changing all plugs and one coil, followed by replacement of all injectors.
Didn't fix the problem.
The root cause in my case? Carbon fouling on the intake valves.
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  #4  
Old 04-28-2013, 04:35 AM
hondo402000 hondo402000 is offline
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I find it hard to believe carbon fouling on the intake valves would cause an intermittent sputtering, I would think it would run rough all the time, I would check to see if your High pressure fuel pump has been replaced, spark plugs? maybe..
I would think once a coil went bad it would stay bad unless it goes out when it gets hot, If you have tons of money, then replace all the plugs, all the coils, and injectors, and have the intake walnut blasted and replace the HPFP then you have a 90 percent chance you got the culprit
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  #5  
Old 04-28-2013, 05:45 AM
Phil325i Phil325i is online now
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Erm...why not take the guesswork out if this and avoid unnecessary expense by going to a reliable indy and getting the fault codes read?
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  #6  
Old 04-28-2013, 05:48 AM
SuperTerp SuperTerp is offline
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Quote:
Originally Posted by galahad05 View Post
For me, I had a similar experience, though it ended up much worse than yours (is now).
I ended up changing all plugs and one coil, followed by replacement of all injectors.
Didn't fix the problem.
The root cause in my case? Carbon fouling on the intake valves.
That would have to be really bad...

I'd do in this order:

Intake valves
2-4 gallons of e85
coils/Plugs
Fuel injectors
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  #7  
Old 04-28-2013, 07:09 AM
hondo402000 hondo402000 is offline
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so whats E85 going to do? Right now thats one problem is the Alcohol in Gas, How about we go back to 100 percent gasoline!
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  #8  
Old 04-28-2013, 07:11 AM
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thekurgan thekurgan is offline
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Even if any of the above offers are correct, it's gonna cost you if you're of warranty. N54 club FTL
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Last edited by thekurgan; 04-28-2013 at 12:40 PM.
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  #9  
Old 04-28-2013, 09:25 AM
BimmerBoy1986 BimmerBoy1986 is offline
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Mileage is 92k. The fact that it comes and goes is whats bothering me. Just change jobs so I wont have play money for about a month.
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  #10  
Old 04-28-2013, 09:27 AM
BimmerBoy1986 BimmerBoy1986 is offline
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Quote:
Originally Posted by Phil325i View Post
Erm...why not take the guesswork out if this and avoid unnecessary expense by going to a reliable indy and getting the fault codes read?
Will most likely do this on Friday my next off day.
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  #11  
Old 04-28-2013, 10:48 AM
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galahad05 galahad05 is offline
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Quote:
Originally Posted by hondo402000 View Post
I find it hard to believe carbon fouling on the intake valves would cause an intermittent sputtering, I would think it would run rough all the time, I would check to see if your High pressure fuel pump has been replaced, spark plugs? maybe..
I would think once a coil went bad it would stay bad unless it goes out when it gets hot, If you have tons of money, then replace all the plugs, all the coils, and injectors, and have the intake walnut blasted and replace the HPFP then you have a 90 percent chance you got the culprit
I have no idea why, but my symptoms were exactly like OPs....at first. But the symptoms over time got worse and worse until finally it turned into a permanent 5-cylinder operation (constant misfire in cylinder #2).

Theory:
It's like.....variable combustion chamber quality, based on outside air temp, how I'm driving it, whatever, and of course the carbon fouled intake valves, effecting how hard it is to fire off the fuel/air charge at any given moment. Sometimes it fired okay (enough), sometimes not at all. This stressed out my plug and coil with essentially uncontrolled combustion conditions. Eventually, the spark system on the worst-effected cylinder just wore out.
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  #12  
Old 04-28-2013, 11:53 AM
SuperTerp SuperTerp is offline
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Quote:
Originally Posted by hondo402000 View Post
I find it hard to believe carbon fouling on the intake valves would cause an intermittent sputtering, I would think it would run rough all the time, I would check to see if your High pressure fuel pump has been replaced, spark plugs? maybe..
I would think once a coil went bad it would stay bad unless it goes out when it gets hot, If you have tons of money, then replace all the plugs, all the coils, and injectors, and have the intake walnut blasted and replace the HPFP then you have a 90 percent chance you got the culprit
lol I just shot off an email to my SA about doing all my coils and plugs if I can get near the getbmwparts price + an hour or two of labor I think I'll bite.
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  #13  
Old 04-28-2013, 12:43 PM
hondo402000 hondo402000 is offline
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you can replace the coils and plugs your self, thats plug and play stuff, if you have to do the intake valves it might be worth having someone do it
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  #14  
Old 04-28-2013, 01:04 PM
SuperTerp SuperTerp is offline
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you can replace the coils and plugs your self, thats plug and play stuff, if you have to do the intake valves it might be worth having someone do it
I'm aware of that but as this would be a first time DIY its probably best not to start a day before class and the last week before finals
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  #15  
Old 04-28-2013, 01:09 PM
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CALWATERBOY CALWATERBOY is offline
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Quote:
Originally Posted by BimmerBoy1986 View Post
Mileage is 92k. The fact that it comes and goes is whats bothering me. Just change jobs so I wont have play money for about a month.

If never done, you're way overdue for a walnut shell blastin'. Frequent cure for misfires - just Google or SEARCH for more info.

Or, you can do it the hard way - hate that.

Spend couple o'hundred $ for the first procedure - you'll be soooooooo glad, and soooooooo much smoother....then, can do again as needed for next to nothing. Dealer: $600




.

Last edited by CALWATERBOY; 04-28-2013 at 01:14 PM.
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  #16  
Old 04-28-2013, 02:19 PM
SuperTerp SuperTerp is offline
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Originally Posted by CALWATERBOY View Post
If never done, you're way overdue for a walnut shell blastin'. Frequent cure for misfires - just Google or SEARCH for more info.

Or, you can do it the hard way - hate that.

Spend couple o'hundred $ for the first procedure - you'll be soooooooo glad, and soooooooo much smoother....then, can do again as needed for next to nothing. Dealer: $600




.
indy 300-450
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  #17  
Old 04-28-2013, 02:23 PM
BimmerBoy1986 BimmerBoy1986 is offline
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Got a great one named Motorcepts around here going to give them a call most likely get it done next month.
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  #18  
Old 04-28-2013, 02:42 PM
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galahad05 galahad05 is offline
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For the record I just recently installed an oil catch can. Hopefully this will take care of the carbon fouling issue going forward.
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  #19  
Old 04-28-2013, 02:59 PM
SuperTerp SuperTerp is offline
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For the record I just recently installed an oil catch can. Hopefully this will take care of the carbon fouling issue going forward.
It won't. Plenty of people have removed them and still find enough carbon that it would be worthy of a blast.
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  #20  
Old 04-28-2013, 03:11 PM
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CALWATERBOY CALWATERBOY is offline
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Originally Posted by galahad05 View Post
For the record I just recently installed an oil catch can. Hopefully this will take care of the carbon fouling issue going forward.

Hey G - sorry to say: improvement yes - cure no.

There is work in progress re: volatile components of engine oil, and initial result, but no cure.
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  #21  
Old 04-28-2013, 03:43 PM
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galahad05 galahad05 is offline
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Well that sucks.
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