P0161 Heater circuit/O2 sensor | Ford Explorer Forums

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P0161 Heater circuit/O2 sensor

njlarry

Member
Joined
January 20, 2010
Messages
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Year, Model & Trim Level
2002 Bauer
Hello all.
Have a P0161 error message-heater circuit bank 2 of 2. 2002 V6 Explorer. I know this must be a stupid question but where is the bank 2 of 2 O2 sensor located and how is it tested?
I've read the stickies but not sure where to check the voltage even once I find the sensor.
Thanks for any help.
 






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