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New OBD2 code p0140...mystery o2? 850 1997

posted by  Shaughnessy on  Fri Aug 28 15:36 CST 2020
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last visit: Fri Oct 3 23:53 CST 2014
[RELATED]

Does the 97 have a different O2 sensor than the rest of the 850s?

I just took mine off, and compared it to my new one, and they're two completely different lengths. And I know it's the rear one because it's the one further along on the exhaust.

BUT whats weird is, the videos I've seen show the O2 sensor being right above a plate that you unbolt (with 12 mm socket), but mine isn't. It's maybe 6 inches away from the front O2 sensor.

I did some researching (just now) and it appears there are 2 different varieties. One is much cheaper (mine is! yay!).

Just hope I can return it
--
1985 245. 246K Gone..but not forgotten. Sold in 2013, found 2018! Still running on the road. Of course. 1993 Volvo 850 soon to be gone






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