Replaced o2 sensor but still faulty.

Smee · 04-24-2022, 03:29 PM

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Hello

Have replaced the o2 sensor with a genuine and its still faulty. As its a new unit from bmw I took it in under warranty and they have flashed the ecu and had a play around and now they are telling me its the cable that runs down to the secondary o2 and I would have to pay for it to be Investigated.

I've checked realoem but I cant find which loom the secondary o2 sensors plug in too. Anyone got the refs?

TopJimmy · 04-24-2022, 04:56 PM

Maybe part #1 here. I see a connector down where the secondary O2 plugs in. Not sure.

https://www.realoem.com/bmw/enUS/sho...diagId=12_1913

Smee · 04-24-2022, 05:39 PM

Cheers. That was my guess too. I'll ping it to my mechanic and get him to take a look at that part.

Cheers again

04-24-2022, 03:29 PM	#1
Smee Colonel 505 Rep 2,152 Posts Drives: BMW M4 F83 Join Date: Aug 2016 Location: Norfolk iTrader: (0)	Replaced o2 sensor but still faulty. Featured on BIMMERPOST.com Hello Have replaced the o2 sensor with a genuine and its still faulty. As its a new unit from bmw I took it in under warranty and they have flashed the ecu and had a play around and now they are telling me its the cable that runs down to the secondary o2 and I would have to pay for it to be Investigated. I've checked realoem but I cant find which loom the secondary o2 sensors plug in too. Anyone got the refs? __________________ Current: BMW M4 F83 - Mods : Pedal Covers, LCI Stereo facia Retrofit and Carbon Rear corner covers Old: F32 435d M Sport - Mods : HR Sport Springs, 20" Veemann V-FS23 in Gun Metal, M Performance Body Kit, Pedal Covers, Eurspec CF Mirror Caps, More-BHP remap 364 BHP 741 NM, M4 Under Chassis Brace, 15mm Rear ARB, 8.8" Screen Retrofit and LCI Stereo facia Retrofit
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04-24-2022, 04:56 PM	#2
TopJimmy Major General 5450 Rep 5,138 Posts Drives: 2023 M3 Comp xDrive Join Date: Jul 2019 Location: Chester County, PA iTrader: (5)	Maybe part #1 here. I see a connector down where the secondary O2 plugs in. Not sure. https://www.realoem.com/bmw/enUS/sho...diagId=12_1913 Attached Images __________________ '18 F80 Base 6MT \| '19 F82 Exec DCT \| '18 F82 Comp Exec DCT \| '23 G80cx
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04-24-2022, 05:39 PM	#3
Smee Colonel 505 Rep 2,152 Posts Drives: BMW M4 F83 Join Date: Aug 2016 Location: Norfolk iTrader: (0)	Cheers. That was my guess too. I'll ping it to my mechanic and get him to take a look at that part. Cheers again
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