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Old 06-08-2019, 01:56 PM   #1
mainegoon
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Join Date: Mar 2019
Location: Paterson
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My Ride: 2005 bmw 325xi wagon
Why is my bmw running to lean?

How to fix this problem once & for all?
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Old 06-08-2019, 02:43 PM   #2
HayWagon
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Location: Collingwood Ontario
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My Ride: 03 330iT
With the wealth of information you provided I'm sure you will have an answer in no time.

Sent from my tractor.
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Old 06-08-2019, 02:46 PM   #3
mainegoon
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Originally Posted by HayWagon View Post
With the wealth of information you provided I'm sure you will have an answer in no time.

Sent from my tractor.


Lean bank 1 & 2
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Old 06-08-2019, 02:58 PM   #4
armenh7
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Join Date: Dec 2016
Location: California
Posts: 8,567
My Ride: 325i (Turbo M54B30)
P0171 and P0174

Smoke test
Fuel pump
Fuel filter
Remove intake manifold and change all gaskets
MAF
Brake booster
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Old 06-08-2019, 03:07 PM   #5
mainegoon
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Join Date: Mar 2019
Location: Paterson
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My Ride: 2005 bmw 325xi wagon
Quote:
Originally Posted by armenh7 View Post
P0171 and P0174

Smoke test
Fuel pump
Fuel filter
Remove intake manifold and change all gaskets
MAF
Brake booster


Ok thank you
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Old 06-11-2019, 06:58 AM   #6
snaponbob
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Join Date: Oct 2011
Location: Lees Summit
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My Ride: 2001 E46 325i Tourin
Considering that my E39 525iT has begun throwing those codes, this is GREAT to see !!!!!!!!!!!!! Off to Lowes I go.
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