Rear o2 sensors needed?

aflatau · 10-06-2013, 01:18 PM

Do the rear o2 sensors post cat do anything more then check to see if there is cats?

OpenFlash · 10-06-2013, 03:28 PM

Yes. They are used to check the functionality of the front o2 sensors. Definitely need them. Or at least something that does a good job of simulating their signals.

aflatau · 10-07-2013, 02:25 AM

Quote:

Originally Posted by shiv@vishnu

Yes. They are used to check the functionality of the front o2 sensors. Definitely need them. Or at least something that does a good job of simulating their signals.

Ok thank you.

10-06-2013, 01:18 PM	#1
aflatau First Lieutenant 50 Rep 322 Posts Drives: 335i Join Date: Mar 2012 Location: Buffalo, NY iTrader: (1)	Rear o2 sensors needed? Do the rear o2 sensors post cat do anything more then check to see if there is cats? __________________ 24 XM
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10-06-2013, 03:28 PM	#2
OpenFlash 1736 Rep 17,960 Posts Drives: A Lot Join Date: Sep 2006 Location: SF Bay, CA iTrader: (0) Garage List 2018 Ducati Panigal ... [0.00] 2016 Mazda CX5 [0.00] 2017 Aprilia Tuono ... [0.00] 2019 BMW M2 Competi ... [0.00] 2015 BMW M5 Competi ... [10.00] 2016 Ducati XDiavel S [0.00] 2016 AMG GT S [0.00] 2011 Ferrari 458 It ... [0.00] 2017 Charger Hellcat [0.00] 2015 KTM Super Duke ... [0.00] 2016 KTM RC390 [0.00]	Yes. They are used to check the functionality of the front o2 sensors. Definitely need them. Or at least something that does a good job of simulating their signals.
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