29F5 - Faulty o2 sensor?

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BMW 3-Series (E90 E92) Forum > 29F5 - Faulty o2 sensor?

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06-01-2023, 08:24 PM	#1
busted323i Enlisted Member 0 Rep 47 Posts Drives: BMW 323i Join Date: Nov 2021 Location: Canada iTrader: (0)	Hi all, Recently my engine light turned on with error codes 29F5 and 29F4. I checked the post cat o2 sensors output and got a very “noisy” signal. Is the sensor broken? Graph of sensor output below. (Ignore coolant temp lol) Attached Images
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06-04-2023, 05:42 PM	#2
busted323i Enlisted Member 0 Rep 47 Posts Drives: BMW 323i Join Date: Nov 2021 Location: Canada iTrader: (0)	Bump?
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06-12-2023, 09:33 AM	#3
busted323i Enlisted Member 0 Rep 47 Posts Drives: BMW 323i Join Date: Nov 2021 Location: Canada iTrader: (0)	Update: CEL comes and goes, same code
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