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Old 09-28-2012, 08:35 PM   #27
tomoyer
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Join Date: Aug 2011
Location: Reading, Pennsylvania
Posts: 781
My Ride: 03 325xi, 03 330xi
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Thanks SamDoe1, thought that was the DISA. A bad DISA have effect on random idle speed at times? Not throwing any misfire codes or anything like that, actually throwing O2 sensor control limit codes for cyl #1-3 and #4-6 O2 sensor adaptation limit codes for #1-3 and #4-6. I just replaced the pre-cat O2 sensors and that took away the random misfire codes but the 4 codes have reappeared..........thinking I also need to replace the post-cat O2 sensors as well. What's your take on it? You can chime in as well Kubica.
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