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Old 11-05-2012, 10:37 PM   #6
jfoj
Registered User
 
Join Date: Nov 2009
Location: Fairfax, VA USA
Posts: 10,084
My Ride: '06 330CiC, '03 M5
The SAP vacuum control hose that runs around the valve cover is FAMOUS for multiple breaks.

Most people fully bypass this line from the vacuum control valve to under the rear of the intake.

See my first link in my signature regardlng the SAP section.
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Solve your misfires, lean codes, rough idle - http://forum.e46fanatics.com/showthread.php?t=897616

Fuel pump failures - http://forum.e46fanatics.com/showthread.php?t=929501

Temp Info - http://forum.e46fanatics.com/showthread.php?t=964491

Hidden OBC Menu - Check Voltage, Temps, Fuel Level - http://forum.e46fanatics.com/showthread.php?t=239619

E46/E39 GM5 Door Lock Info - www.bmwgm5.com

Lower hose fan switch O-ring - BMW #13621743299
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