Bringing this post back to life as I never resolved. I looked into all the emissions laws that I could find and nothing that would've allowed me to get this taken care of. I was originally told the code was for Bank 2, but after looking at some links for OBD DTC trouble codes, I see P0156 only states "Oxygen Sensor Circuit"
I'm confused. Need to get my coding cable and software dialed in so that I can look at this stuff myself! To be continued...
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2018 F15 X5d Carbon Black/Nutmeg Individual- Oil Burner Tow Rig
2013 E82 1M3 Carbon Black/Black- S65/DCT Track Toy
2013 F25 X3 35i Alpine White/Chestnut- German American Family Hauler
Past: '11 E91 335is, '11 E90 M3, '10 X5M, '14 328d, '03 330i Dinan3 ZHP, '04 330i ZHP, '12 X3 35i
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