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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E46 (1999 - 2006)

E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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  #1  
Old 10-03-2012, 05:05 PM
LPenna LPenna is offline
325i Guy
Location: Hollywood, Ca
 
Join Date: Nov 2008
Posts: 43
Mein Auto: 2001 BMW 325i E46
Angry What my problem???

Can someone please help me find my issue with this check engine light.

I have a 2001 325i e46. I fail smog and had these part changed and I still get the check engine light after 80 miles of resetting the light. i change the MAF with the air tube and clean the ICV which did not look very bad after having 112k on the car. I also change all 4 O2 sensors. Change of spark plugs also.
I have peake code reader and only two code come up saying E3 and E4 O2 sensor adaptation limit cyl # 1-3 and 4-6.............

What is my issue......please help me....
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  #2  
Old 10-03-2012, 10:32 PM
harryhchen harryhchen is offline
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Location: California
 
Join Date: Aug 2011
Posts: 78
Mein Auto: 2001 325i / 2002 530i
so what are codes?
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  #3  
Old 10-03-2012, 11:09 PM
scarede46er scarede46er is offline
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Location: Clemson, SC
 
Join Date: Aug 2012
Posts: 161
Mein Auto: 2001 BMW 325i ZSP
I have peake code reader and only two code come up saying E3 and E4 O2 sensor adaptation limit cyl # 1-3 and 4-6............."
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  #4  
Old 10-04-2012, 05:46 AM
CPBIII CPBIII is offline
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Location: East Earl, PA
 
Join Date: Feb 2006
Posts: 81
Mein Auto: 2002 325i
take your car to a local parts store that will read the OBDII codes. Better if they can provide the BMW codes which alot of readers will do.
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  #5  
Old 10-04-2012, 08:39 AM
LPenna LPenna is offline
325i Guy
Location: Hollywood, Ca
 
Join Date: Nov 2008
Posts: 43
Mein Auto: 2001 BMW 325i E46
Problem in California is that store ain't allow to do that any more. I was surprise also. Should I just buy a new code reader??
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  #6  
Old 10-04-2012, 08:44 AM
harryhchen harryhchen is offline
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Location: California
 
Join Date: Aug 2011
Posts: 78
Mein Auto: 2001 325i / 2002 530i
You can get a ODBII reader for around $20 from Amazon. Here is what I have:
http://www.amazon.com/Autel-MaxiScan...s=ODBII+reader
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  #7  
Old 10-04-2012, 11:26 AM
LPenna LPenna is offline
325i Guy
Location: Hollywood, Ca
 
Join Date: Nov 2008
Posts: 43
Mein Auto: 2001 BMW 325i E46
Quote:
Originally Posted by harryhchen View Post
You can get a ODBII reader for around $20 from Amazon. Here is what I have:
http://www.amazon.com/Autel-MaxiScan...s=ODBII+reader
What the difference between this one and the ones that are bigger and little more expensive. Does those one give more info, Or does it do the same job?
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  #8  
Old 10-04-2012, 12:56 PM
CPBIII CPBIII is offline
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Location: East Earl, PA
 
Join Date: Feb 2006
Posts: 81
Mein Auto: 2002 325i
Check the specifications and find one that will provide manufacturer specific codes. Probably won't be the $20.00 plan.
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  #9  
Old 10-04-2012, 08:36 PM
chansta chansta is offline
Learning Daily
Location: SOCAL
 
Join Date: Nov 2010
Posts: 261
Mein Auto: 89 CIVIC
those are adaptation codes. most likely your car is running lean due to a vacuum leak. probably cvv needs to be changed.
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