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      08-05-2011, 09:54 AM   #1
netzel2002
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Cleaning my Throttle body on my 2006 325i E90

I'm planning on cleaning the throttle body this weekend and also clean the MAF sensor. You guys think that will help me out? Should I remove the throttle body entirely from the car?
Any ideas will be appreciated.
My car runs good, but it shakes at idle when the engine is cold for like 10 seconds until the RPM drop around 550. Already replaced spark plugs, air filter, oil Mobil 1 0w40 (every 7500 miles). My mpg: 22.6 (city/hwy).

Thanks !
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      08-05-2011, 10:45 AM   #2
Glim
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How many miles on the car?
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      08-05-2011, 10:49 AM   #3
netzel2002
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105,000
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      08-05-2011, 10:52 AM   #4
Glim
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Quote:
Originally Posted by netzel2002 View Post
105,000
Injector cleaner:

http://www.e90post.com/forums/showthread.php?t=424995

Does the car have any shadow faults? Do you have a BT tool?
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      08-05-2011, 10:58 AM   #5
netzel2002
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no shadow faults. I have a BT tool and no codes no nothing.
Already used Chevron Techron Plus but no improvement.
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      08-05-2011, 11:36 AM   #6
ENINTY
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There is no throttle body on the N52. If you want to clean the intake system and valves, have BG Products Intake cleaning procedure done. It's about $100.
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      08-05-2011, 12:19 PM   #7
netzel2002
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it does have a throttle body.
http://cgi.ebay.com/ebaymotors/2006-...-/220753806916
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      08-05-2011, 08:16 PM   #8
ENINTY
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Quote:
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It's only used as a back up. The N52 breathing (i.e. throttle) is controlled by the Valvetronic system.
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