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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > Shaking under acceleration. Need advice.



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      10-12-2014, 11:53 AM   #1
Goofs
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Shaking under acceleration. Need advice.

Hey how's it going guys. I purchased my 2009 BMW 328i xDrive in late spring with a hair under 50k on it. Car ran like a champ with absolutely no problems till about a month or two ago.

One night driving home the car started shaking like crazy under acceleration. This would happen to about 3k RPMs and would stop at any RPMs higher then that. It would also shake at idle. It popped up a SES light that night as well. Anyways, I turned the car on and off that night and the problem went away.

The next morning I went and scanned the car. This is the code that popped up.

P0201 - Injector Circuit/Open - Cylinder 1

I thought it might have been some kind of loose electrical connection since the problem disappeared till this week. Now this is occurring mostly during a drive of 30mins or more.

I was wondering if any of you have experienced this problem, or have any input on it. I talked to my mechanic briefly he thinks its an injector problem, he told me to switch the injector from Cylinder 1 to 3, and see if the problem reoccurs but just in the 3rd cylinder. This advice seems good, but I would like confirmation before I start taking things apart. Thanks in advance.

Also, problem fixes itself magically once car is turned off and on.
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      10-12-2014, 09:08 PM   #2
Goofs
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Bump. Anyone?
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      10-12-2014, 09:18 PM   #3
kobeballer96
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Coil pack maybe?
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      10-12-2014, 09:29 PM   #4
paulm3251
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Quote:
Originally Posted by Goofs View Post
Hey how's it going guys. I purchased my 2009 BMW 328i xDrive in late spring with a hair under 50k on it. Car ran like a champ with absolutely no problems till about a month or two ago.

One night driving home the car started shaking like crazy under acceleration. This would happen to about 3k RPMs and would stop at any RPMs higher then that. It would also shake at idle. It popped up a SES light that night as well. Anyways, I turned the car on and off that night and the problem went away.

The next morning I went and scanned the car. This is the code that popped up.

P0201 - Injector Circuit/Open - Cylinder 1

I thought it might have been some kind of loose electrical connection since the problem disappeared till this week. Now this is occurring mostly during a drive of 30mins or more.

I was wondering if any of you have experienced this problem, or have any input on it. I talked to my mechanic briefly he thinks its an injector problem, he told me to switch the injector from Cylinder 1 to 3, and see if the problem reoccurs but just in the 3rd cylinder. This advice seems good, but I would like confirmation before I start taking things apart. Thanks in advance.

Also, problem fixes itself magically once car is turned off and on.

My guess is bad injector..

http://forums.bimmerforums.com/forum...r-problem-Help!

Last edited by paulm3251; 10-12-2014 at 11:00 PM.
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