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looking at 93 sevill codes po45 and po46

3.3K views 1 reply 2 participants last post by  Logandiagnostic  
#1 ·
just wanted to ask what is makeing it throw these codes
P045 .............................................. Right Oxygen Sensor Signal Rich
P046 ........................................ Right to Left Bank Fueling Difference

im looking in to the car for my mother and i just wanted to make sure its not a big deal could the oxygen sensor be bad ?? and pight to left bank fueling ?? its not a north star i think its a 4.9 ?