WHERE IS LOCATION OF BANK 1 SENSOR 1 O2 SENSOR?...

2005 Mercury Mountaineer

Tiny

johnrobitaille

April, 10, 2013 AT 4:23 PM

Where is location of bank 1, sensor 1 o2 sensor?
auto zone said there test readings show dem p2195, should I change sensor and where is it. Passenger side or drivers side? I have a 6 cyl

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1 Answer

Tiny

Wrenchtech

April, 10, 2013 AT 4:31 PM

That is the upstream sensor on the passenger side but a new sensor isn't necessarily going to fix it. It's indicating a lean condition on that side of the engine, not necessarily a bad sensor. It needs to be diagnosed properly and the sensor tested.

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