Member
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Join Date: Aug 2017
Location: Ohio
Posts: 599
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Member
Join Date: Aug 2017
Location: Ohio
Posts: 599
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P0420 - passenger O2 below threshold .. interesting
I already purchased a new downstream sensor for my v6 passenger side, but wonder about the error.
I'll reset the lights and they consistently come back on when I'm heading up a specific 40mph hill near my house and the engine lulls to 1k rpm and then downshifts. Really, no feel of strain, just consistent. It does come back on sometimes in random straight smooth drives as well.
I'll update this when the sensor goes in hopefully tomorrow to see if it stays out.
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