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      11-10-2012, 08:38 PM   #6
BMW86
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Drives: BMW 135i CLA45 AMG MacanS
Join Date: Jul 2008
Location: Australia

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I'm having the exact same issue for months now. Same codes. Would like to know what the issue is as well. What is your full exhaust setup? Also do you use a dp fix?

I've replaced front o2 sensors as well. Also reset lambda and AFR with no luck. Codes come back straight away.
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Current: BMW 135i N54, Mercedes CLA45 AMG, Porsche Macan S Petrol
Past: Ninja 300 ABS, BMW E46
Best 1/4 Time: 2009 BMW 135i : 12.042 @ 119.970 MPH