12-04-2022, 04:05 PM | #1 |
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Which downpipe are the (bank 2) O2 sensors on... ?
I hope you fellas can help me out here. I've got a 2020 X3 MC that I'm restoring with only 1,700 miles on it. We're getting a check engine light saying the bank 2 (post cat) 02 sensor is bad.
(1.) So is bank 2 on the drivers side orientation or the passenger side of the factory downpipes... ? (2.) Have you ever seen a 02 sensor fail that early... ? (3.) Do the pre or post cat 02 sensor tend to fail more often... ? https://www.realoem.com/bmw/enUS/sho...diagId=18_1751
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1998 E36 M3 - Totaled
2003 E39 M5 - Gone but not forgotten 2011 E90 335i M-Sport - Daily Driver 2017 F87 M2 - Sold & missed 2020 F97 X3 M Competition - Finally arrived /// Last edited by Kevin_The_Clean1; 12-04-2022 at 10:17 PM.. |
12-04-2022, 07:26 PM | #2 |
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This must be a pretty difficult question & knowledge only a few people know.
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12-04-2022, 08:06 PM | #3 |
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I believe bank to is the back theee cylinders
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Kevin_The_Clean13865.00 |
12-04-2022, 08:07 PM | #4 |
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It shouldn’t of fail so soon either. Did you check the connections on the back of the valve cover to make sure they are properly connected there a little tricky
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dmanb2b2154.50 Kevin_The_Clean13865.00 |
12-04-2022, 10:16 PM | #5 | |
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Quote:
https://www.realoem.com/bmw/enUS/sho...diagId=18_1751
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12-05-2022, 07:40 AM | #6 | |
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Quote:
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