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E90/E91/E92/E93 (2006 - 2013)
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  #1  
Old 06-06-2017, 11:20 PM
kcdelas kcdelas is offline
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Location: bakersfield
 
Join Date: Jun 2017
Posts: 3
Mein Auto: 09 bmw 328i
Need help.. P0015 & p0030 codes

P0015 code would come on and my car would starting shaking.. As soon as that happened id pull over, turn off the car and itll drive perfect.. Only happens when im going 80 mph or more.. Well now that code dissappered snd now i have a p0030 cylinder 3 misfire.. CEL stays on now itll shake as soon as i start driving over 80 mph but as soon as i turn it off itll be fine.

Is this a easy fix?
Expensive?
I really dont want to get rid of this car its my first bmw and i really fell in love with it ive only had it for 1 year.. Plz any info will be highly appreciated

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  #2  
Old 06-07-2017, 01:15 PM
gbalthrop gbalthrop is online now
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Location: Fairfax County, Virginia
 
Join Date: Mar 2017
Posts: 195
Mein Auto: 2007 328xi
Cylinder 3 Misfire?

Quote:
Originally Posted by kcdelas View Post
P0015 code would come on and my car would starting shaking.. As soon as that happened id pull over, turn off the car and itll drive perfect..Well now that code dissappered snd now i have a p0030 cylinder 3 misfire.. CEL stays on now itll shake as soon as i start driving over 80 mph but as soon as i turn it off itll be fine...I really dont want to get rid of this car its my first bmw...
"SES" means "Service Engine Soon", NOT Sell E90 Soon

If it has been awhile since you got the P0015 code, I would just clear that from memory (if you have NOT already) and deal with the misfire code (see below). If the P0015 code returns, just Google "E90 P0015" and you will find quite a bit of helpful info such as this thread:
http://www.bimmerfest.com/forums/sho...d.php?t=427473

You say you have "p0030 cylinder 3 misfire." My OBDII literature says THAT code indicates a problem with the O2 sensor heater, Bank 1 Sensor 1.

A misfire on cylinder #3 should set P0303 code. If THAT is what you are getting, or ANY code from P0300 - P0306, the first thing I would do is change plugs, and then do a few forays to redline in 1st gear (NO need to go 80+, it's the RPM that matter ;-)

Leave the covers off during the test, and if another misfire code recurs, swap the coil from that indicated cylinder to another cylinder and see if the misfire code follows that coil. If no code in 5-6 redline trips, just button it up & assume you may have found that problem (worked for me on my new-to-me 2007 328xi). If not, at least you know now how to remove the microfilter covers & engine top cover, and your plugs probably needed changing anyway.

BTW, if you do remove your plugs, please measure the gaps of the old plugs and report back if they are in the .055" to .060 range. I have a theory that plug gap increases with prolonged use, and that can cause intermittent misfire. Further factual correlation (or disparagement ;-) of that theory would be appreciated.

George
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  #3  
Old 06-07-2017, 04:42 PM
kcdelas kcdelas is offline
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Location: bakersfield
 
Join Date: Jun 2017
Posts: 3
Mein Auto: 09 bmw 328i
Quote:
Originally Posted by gbalthrop View Post
"SES" means "Service Engine Soon", NOT Sell E90 Soon

If it has been awhile since you got the P0015 code, I would just clear that from memory (if you have NOT already) and deal with the misfire code (see below). If the P0015 code returns, just Google "E90 P0015" and you will find quite a bit of helpful info such as this thread:
http://www.bimmerfest.com/forums/sho...d.php?t=427473

You say you have "p0030 cylinder 3 misfire." My OBDII literature says THAT code indicates a problem with the O2 sensor heater, Bank 1 Sensor 1.

A misfire on cylinder #3 should set P0303 code. If THAT is what you are getting, or ANY code from P0300 - P0306, the first thing I would do is change plugs, and then do a few forays to redline in 1st gear (NO need to go 80+, it's the RPM that matter ;-)

Leave the covers off during the test, and if another misfire code recurs, swap the coil from that indicated cylinder to another cylinder and see if the misfire code follows that coil. If no code in 5-6 redline trips, just button it up & assume you may have found that problem (worked for me on my new-to-me 2007 328xi). If not, at least you know now how to remove the microfilter covers & engine top cover, and your plugs probably needed changing anyway.

BTW, if you do remove your plugs, please measure the gaps of the old plugs and report back if they are in the .055" to .060 range. I have a theory that plug gap increases with prolonged use, and that can cause intermittent misfire. Further factual correlation (or disparagement ;-) of that theory would be appreciated.

George
Thank you man this is very helpful! Much appreciated

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  #4  
Old 06-07-2017, 04:42 PM
kcdelas kcdelas is offline
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Location: bakersfield
 
Join Date: Jun 2017
Posts: 3
Mein Auto: 09 bmw 328i
Quote:
Originally Posted by kcdelas View Post
Thank you man this is very helpful! Much appreciated

Sent from my LGLS775 using Bimmerfest mobile app
Ill try it then let you know my results

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