E46Fanatics - View Single Post - Need help with rough idle and stalling
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Old 12-31-2012, 02:23 PM   #3
OEM ///Member
Join Date: Nov 2009
Location: Fairfax, VA USA
Posts: 23,213
My Ride: 330CiC, M5, X5, E93
Suggest you look at the first 3 links in my signature. You will need to use a computer as you will not see the links on a phone If you replaced the fuel pump, not likely your problem.

I would also assume you have a CEL on as well? What codes are you getting? These will be good clues.

Likely you disturbed the CCV hoses when replacing the alternator?

Also what is the story on the fuel filter.

Use the 3rd link to display the Voltage on the OBC display. This way you can make sure the car is charging properly and not over charging.
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, Temp, Fuel Level - http://forum.e46fanatics.com/showthread.php?t=239619

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

Lower hose temp switch O-ring - BMW #13621743299
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