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My 2003 BMW 325i computer says "Service Engine Soon". Code reader says "left bank lean" and secondary code says "right bank lean" so would this mean I just need to replace my 2 front O2 sensors? Thank you for any input you can give me
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Maybe; I would use the code reader to check all the sensors to see if they are ready, if it has this function.
Code reader is only giving me two diagnostic codes. I know I have 2 front and 2 rear sensors...but it is only showing fault in two.