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Guest Message by DevFuse

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O2 Sensors in Legacy

O2 sensors fuel trim system legacy

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4 replies to this topic

#1 Jake@PowellSubaru



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  • Dayton Ohio

Posted 09 February 2013 - 11:20 AM

Are universal O2 sensors ok to use? I'm not worried about the extra wiring work involved when using a Bosch universal O2 sensor, I just wanna know that it's not gonna cause problems with the pcm or fuel trim system.

#2 mikaleda


    legacy specialtist

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Posted 09 February 2013 - 04:53 PM

In my experience they were a little long and hard to install without damaging them, I ended up going o.e.m.
I never got the universal to work correctly

Edited by mikaleda, 09 February 2013 - 04:56 PM.

#3 Rooster2


    Subaru Master

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Posted 09 February 2013 - 05:09 PM

If by universal, you mean one where you splice wires from old one to new one, then I have to say that in my experience I have never had one last very long. Going after market is good, if no wires need to be spliced.

#4 1-3-2-4


    Subaru Mike!

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Posted 09 February 2013 - 07:10 PM

I only use Denso 02 sensors, my front one is Denso and I need to buy the rear sensor as I bent the part were the wires come out so I have a code, might as well get Denso for that too.

#5 Fairtax4me



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Posted 10 February 2013 - 12:34 PM

The old one wire sensors were fine, but the multi-wire universals have a poor reputation for reliability. Have one that has just failed in my mothers Camry after only about 2 years. Worked great until about a month ago then fuel economy went to hell and it popped a CEL codes p1130 and p0171. Scanner showed STFT at +24%, LTFT at +44.5%. (Pig rich)

You can get Denso or NTK exact fit on rockauto.com for about $50.

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