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What does code PO158 mean on a mercury mountaineer?

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It's a code for an o2 sensor concern. Specifically bank #2 downstream sensor, rear sensor on drivers side exhaust...

Posted on Jun 07, 2014

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Posted on Jan 02, 2017

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1 Answer

REJECTION STICKER OBD PO158


OBD Code P0158 02 Sensor Circuit High Voltage (Bank 2 Sensor 2). Hope this gives you some direction. Thanks for Using FixYa!

Sincerely,

JC

Nov 28, 2008 | 2002 Jeep Grand Cherokee

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