want to know repair steps for code PO138
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1999 Infiniti QX4
Question: More detail for repair for code PO138
Answer #1Greg's Orange Auto (8410 Answers) , Orange, CA - (714) 361-9355globalhelper November 06, 2012, 12:50Master
this code could be many issues not just a sensor,seek diag and est
Answer #2your.mechanic November 06, 2012, 20:28Master
O2 sensor voltage too high repair procedure is available...