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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 12-09-2014, 10:41 AM   #1
colinwoods84
Registered User
 
Join Date: May 2014
Location: Norfolk
Posts: 1
My Ride: 330i
P0301 rough idle

threw this code the other day. Car was just idling like crap. A week prior and I'm sorry for not remembering the codes correctly buy had thrown codes for #1 banks(totally forgot what they were)

I have also noticed something that sounded like a vacuum leak going on but also thought it could have been maybe a pulley that was making the noise but you never heard the noise increase or decrease with acceleration.

I just purchased a bottle of techron and am going to replace the plugs but I don't feel like this is going to fix the issue. One other thing I had noticed was around 4K rpm the car would have a slight sputter. Don't know if that could be tied in.

Was wondering if any one has had similar issues are knows where I should focus my trouble shooting.

Any help would be appreciated.

Colin
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