O2 sensor spots?

addict135i · 08-12-2012, 06:01 PM

Hey guys, I've been looking for days to see which wire goes where on the o2 sensor! I guess my tech made a mistake with the wiring on my downpipes...which color goes on the smaller downpipe and which one goes on the bigger one? Will help ALOT if someone can get back ASAP. Thanks in advance!

SGM82 · 08-13-2012, 08:06 AM

According to downpipe DIY on E90 Post the gray sleaved wires are for the rear turbo O2 sensors and the black ones are for the front turbo sensors.

addict135i · 08-13-2012, 11:51 AM

Quote:

Originally Posted by SGM82

According to downpipe DIY on E90 Post the gray sleaved wires are for the rear turbo O2 sensors and the black ones are for the front turbo sensors.

Thank you!

08-12-2012, 06:01 PM	#1
addict135i Lieutenant 25 Rep 574 Posts Drives: 135i Join Date: May 2012 Location: Los Angeles iTrader: (3)	O2 sensor spots? Hey guys, I've been looking for days to see which wire goes where on the o2 sensor! I guess my tech made a mistake with the wiring on my downpipes...which color goes on the smaller downpipe and which one goes on the bigger one? Will help ALOT if someone can get back ASAP. Thanks in advance!
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08-13-2012, 08:06 AM	#2
SGM82 New Member 3 Rep 20 Posts Drives: 2008 135i Coupe Join Date: Jun 2009 Location: NW FL iTrader: (2)	According to downpipe DIY on E90 Post the gray sleaved wires are for the rear turbo O2 sensors and the black ones are for the front turbo sensors.
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