O2 Sensor Faults

kevvinm3 · 09-13-2023, 10:51 AM

Hello guys, my first post since I am really trying to seek help for this issue. I recently replaced my O2 sensor (bank 2 sensor 2) with BOSCH. The original faults were fixed however, new ones came back. New faults but same sensor. Wondering if anybody has any tips or solutions. Thank You!

Below are the faults:

kolosy · 09-13-2023, 10:58 AM

i'm not seeing a list of faults. what were the old ones and what are the new ones?

kevvinm3 · 09-13-2023, 11:13 AM

Quote:

Originally Posted by kolosy

i'm not seeing a list of faults. what were the old ones and what are the new ones?

Sorry about that, I thought the image posted.
Word for Word:

27C7 DME: Oxygen Sensor, Adaptation, Trim Control, Bank 2

273B DME: Oxygen Sensor Vibration Check After Cat Converter, Bank 2

kolosy · 09-13-2023, 11:48 AM

is the pic the new codes? did you unclip / disturb anything on the transmission while you were moving around the oxygen sensor?

kevvinm3 · 09-13-2023, 12:11 PM

Quote:

Originally Posted by kolosy

is the pic the new codes? did you unclip / disturb anything on the transmission while you were moving around the oxygen sensor?

These are the new codes, I can’t find the old ones.
As far as the transmission the last thing I did was a fluid change.

Redd · 09-14-2023, 07:40 PM

Swap sensors left to right and see if the error follows.

Also check your exhaust ring gaskets for leaks.

kolosy · 09-15-2023, 09:10 AM

the open lid / TCU codes, given that you did a fluid fill tell me that either something got disturbed around the transmission harness, or an actual issue with the fill procedure.

amrazM · 09-18-2023, 05:16 AM

Since both of these errors are on the same bank, I would check continuity between the pins for the signal on the sensors to where they terminate at the X60000 dme connector.

09-13-2023, 10:51 AM	#1
kevvinm3 New Member 0 Rep 7 Posts Drives: BMW M3 E92 Join Date: Sep 2023 Location: Sylmar,CA iTrader: (0)	O2 Sensor Faults Hello guys, my first post since I am really trying to seek help for this issue. I recently replaced my O2 sensor (bank 2 sensor 2) with BOSCH. The original faults were fixed however, new ones came back. New faults but same sensor. Wondering if anybody has any tips or solutions. Thank You! Below are the faults:
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09-13-2023, 10:58 AM	#2
kolosy Colonel 1493 Rep 2,021 Posts Drives: over potholes Join Date: Dec 2008 Location: Chicago iTrader: (2)	i'm not seeing a list of faults. what were the old ones and what are the new ones? __________________ Current '21 DG X5MC, '22 X5M50i, '11 E90 M3 Recent Past '12 E92 M3 ZCP, '08 E93 M3, '18 F80 ZCP, '04 E46 M3 I think I have an M3 problem.
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09-13-2023, 11:48 AM	#4
kolosy Colonel 1493 Rep 2,021 Posts Drives: over potholes Join Date: Dec 2008 Location: Chicago iTrader: (2)	is the pic the new codes? did you unclip / disturb anything on the transmission while you were moving around the oxygen sensor? __________________ Current '21 DG X5MC, '22 X5M50i, '11 E90 M3 Recent Past '12 E92 M3 ZCP, '08 E93 M3, '18 F80 ZCP, '04 E46 M3 I think I have an M3 problem.
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09-14-2023, 07:40 PM	#6
Redd Brigadier General 3900 Rep 4,165 Posts Drives: 2010 BMW E92 M3 Dakar Edition Join Date: Jul 2015 Location: Malaysia iTrader: (0)	Swap sensors left to right and see if the error follows. Also check your exhaust ring gaskets for leaks.
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09-15-2023, 09:10 AM	#7
kolosy Colonel 1493 Rep 2,021 Posts Drives: over potholes Join Date: Dec 2008 Location: Chicago iTrader: (2)	the open lid / TCU codes, given that you did a fluid fill tell me that either something got disturbed around the transmission harness, or an actual issue with the fill procedure. __________________ Current '21 DG X5MC, '22 X5M50i, '11 E90 M3 Recent Past '12 E92 M3 ZCP, '08 E93 M3, '18 F80 ZCP, '04 E46 M3 I think I have an M3 problem.
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09-18-2023, 05:16 AM	#8
amrazM mTekMods 2143 Rep 2,902 Posts Drives: like a granny. Join Date: Jan 2010 Location: Manhatan iTrader: (1)	Since both of these errors are on the same bank, I would check continuity between the pins for the signal on the sensors to where they terminate at the X60000 dme connector. __________________ 2011 Frozen Black/Fox Red E90 M3 650+WHP G-Power Supercharged First DCT to Manual Conversion Worldwide KW CS, BBS RI-A, BW Headers, Snow 2.5
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