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Old 11-23-2012, 08:56 PM   #24
jfoj
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Join Date: Nov 2009
Location: Fairfax, VA USA
Posts: 9,346
My Ride: '06 330CiC, '03 M5
Do not worry about the ECU for the moment.

You may have some Pending codes???

Have you had the O2 sensors pass Readiness?

What Readiness Codes are still not cleared?

Suggest you read and try to follow the attached document.
Attached Files
File Type: pdf Federal Drive Cycle Test Procedure.pdf (213.1 KB, 78 views)
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