This is topic How to fix code Po156 96 mustang in forum Tech Talk at Northern California Ford Owners  .


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Posted by Saint (Member # 2746) on :
 
my check engine light came on so i pulled the codes and got po156. o2 sensor circuit malfunction (Bank 2, Sensor2). so i replace the passenger side o2 sensor and reset the computer and the light came back on. im not sure what to do now?
 

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Posted by CDT (Member # 5004) on :
 
did you change the one after the cat or before?
 

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Posted by Saint (Member # 2746) on :
 
after
 

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Posted by Saint (Member # 2746) on :
 
ttt
 

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