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      12-08-2022, 04:16 PM   #1
Tellmee
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Rough idle and error codes

I have rough bouncing rev when engine is cold. Car did get fuel breather valve pretty recently so Iím guessing itís the ICV but not sure why Iím getting the 1st and the 5th code. Iíve read the 1st one is related to alternator but I am not sure about the 5th one. Has anyone experienced similar set of error codes?
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      12-08-2022, 06:03 PM   #2
TrackSpecM3
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That 27B1 code should be an oxygen sensor as that will monitor the output of the secondary air system in that bank
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      12-09-2022, 09:07 AM   #3
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Quote:
Originally Posted by TrackSpecM3 View Post
That 27B1 code should be an oxygen sensor as that will monitor the output of the secondary air system in that bank
Thanks that's what my buddy told me so I ordered the primary o2 sensors.

Hopefully its not the secondaries.
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