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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

 
 
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Old 11-12-2012, 09:46 PM   #1
E46Zone
Registered User
 
Join Date: Nov 2012
Location: Waukegan, Illinois
Posts: 15
My Ride: '01 330xi
Lean codes driving me nuts! Help!

Hello all, I'm on here asking for all your cumulative assistance to help me solve these codes that ive been getting.

-Lean codes P0171 & P0174
- P0131 Misfire due to low fuel
and P0505 ICV failure

The codes are intermittent and randomly trigger the SES light and vice-versa. The car runs perfectly and idles well the only thing noticeable is the decrease in MPG.

So far I've:
-Cleaned MAF
-Changed both intake boots
-New VCG not so long ago
-New fuel pump and fuel filter (2 days ago) along with new fuel hose and vac hose
-New Disa (old one was torn up)
and i've Cleaned the ICV
I also checked the oil drain hose from the CCV and it was fine/not broken

any help would be greatly appreciated! TYIA!
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