where's bank 2 ,07 335i ?

sabredog · 02-10-2015, 07:14 AM

got code p112f, researched it and says replace bank 2 , sensor 1 . I'm assuming that bank 2 is the 3 rear cyl.s, but I figured I'd ask someone that's knowledgable. thanks

KeepRidingDirty · 02-10-2015, 08:36 AM

Quote:

Originally Posted by sabredog

got code p112f, researched it and says replace bank 2 , sensor 1 . I'm assuming that bank 2 is the 3 rear cyl.s, but I figured I'd ask someone that's knowledgable. thanks

3 cylinders closest to the firewall if I recall

sabredog · 02-10-2015, 09:04 AM

that's what I thought . thanks for the input

mweisdorfer · 02-10-2015, 06:39 PM

You have an O2 sensor out pre cat from cylinders 4-6, which would be closest to the firewall.

Probably need to replace both. Once one goes, its not long before the other goes. Don't worry about the post cat O2 sensors. They just monitor the pre-cats to make sure they are working right.

I would get Bosch O2 sensors. Amazon or eBay are good places to start. You probably should either download the Bosch parts app on your phone or goto Bosch Automotive website to get a part number.

02-10-2015, 07:14 AM	#1
sabredog Second Lieutenant 21 Rep 222 Posts Drives: 2007 335i 4 dr Join Date: Jun 2008 Location: delaware iTrader: (3)	where's bank 2 ,07 335i ? got code p112f, researched it and says replace bank 2 , sensor 1 . I'm assuming that bank 2 is the 3 rear cyl.s, but I figured I'd ask someone that's knowledgable. thanks
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02-10-2015, 09:04 AM	#3
sabredog Second Lieutenant 21 Rep 222 Posts Drives: 2007 335i 4 dr Join Date: Jun 2008 Location: delaware iTrader: (3)	that's what I thought . thanks for the input
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02-10-2015, 06:39 PM	#4
mweisdorfer Major General 1903 Rep 6,968 Posts Drives: 2007 Black/Black 335i e90 Join Date: Apr 2011 Location: Holly, MI iTrader: (0) Garage List 2007 BMW E90 335i [0.00] 2008 bmw x5 [0.00]	You have an O2 sensor out pre cat from cylinders 4-6, which would be closest to the firewall. Probably need to replace both. Once one goes, its not long before the other goes. Don't worry about the post cat O2 sensors. They just monitor the pre-cats to make sure they are working right. I would get Bosch O2 sensors. Amazon or eBay are good places to start. You probably should either download the Bosch parts app on your phone or goto Bosch Automotive website to get a part number.
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