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Where is the O2 sensor?

Help, Advice, Owners' Discussion and DIY Tutorials on the Volvo S80 model. Sometimes called an "executive car", the S80 was and continues to be Volvo's top-of-the-line passenger car.

Where is the O2 sensor?

Postby bronson1111 » 26 Apr 2011, 20:37

I have a 2002 Volvo S80 T6. I am trying to figure out the location of the O2 sensor near the head gasket. Does anyone have a diagram or a map of the O2 sensor locations?

Thank you!
Last edited by matthew1 on 28 Apr 2011, 17:25, edited 2 times in total.
Reason: Removed unneeded question marks from title. One's enough :-)
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Model and Year: S80 T6, 2002

Re: Where is the O2 sensor???

Postby precopster » 28 Apr 2011, 13:23

Anyone have this info??
Current cars: 1995 850, 2000 V70 non turbo, 2001 V70 XC project, 2002 XC70

What we used to own:1987 740 sedan, 2002 S60AWD, 1989 740 turbo wagon, 1985 760 V6, 1995 850 wagon, 1999 V70 project car.

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Re: Where is the O2 sensor???

Postby boosted5cyl » 28 Apr 2011, 15:10

You are referring to the upstream (Pre cat) sensors then? There are two, one for each bank. Follow the exhaust pipes from the turbos back towards the cats and you cant miss them, they are right on the top of the pipe about (I guess) 1.5-2ft away from the motor.
'04 XC90 2.5T AWD (Angus) 134K.
'99 S80 T6 (Medusa) 214k. On borrowed time LOL
'98 V70 T5 (Vivienne). RIP @ 228K. Spun rod bearings.
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