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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > What O2 Sensors does BMW use?



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      05-07-2013, 05:44 PM   #1
jzingerman
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What O2 Sensors does BMW use?

For the n55, what o2 sensors does BMW use because I know that they don't have their own. I'm pretty sure it's Bosch but I'm not sure.

Anyone have any idea?

Thanks.

Jake
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      05-07-2013, 06:22 PM   #2
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why do u ask... are you having issues? just curious
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      05-07-2013, 06:58 PM   #3
jzingerman
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Originally Posted by madmanhiker View Post
why do u ask... are you having issues? just curious
I had my o2 sensors switched but not through bmw. They are Bosch sensors and I was told that those are the ones BMW uses but I just want to be sure.

I was having P0030 fault code which is the bank 1 sensor 1. Once we switched the o2 sensors the code went away but the car starting misfiring a lot and sometimes is stalling at stops. I was having misfires before the o2 sensor swap but not as much. I was told the reason it got worse is because my old broken o2 sensors weren't reading if the car was running rich or lean but now since the sensors are actually working and the injectors may also be ruined, the car is always trying to fix the fuel/air mixture.
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      05-07-2013, 07:55 PM   #4
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r u sure they aren't swapped?? those symptoms sound exactly like the o2 sensors are swapped to b honest.
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