Saturn SL1 P Codes (Powertrain) P0400 - P0499 P0420

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1997 Saturn SL1 DTC P0420

1997 SATURN SL1
I Am Getting A Dtc P0420 From The Computer. The Car Is Running Fine. Does The Catalytic Converter Need To Be Replaced? Could It Be An Oxygen...
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Asked by ScarletKnights1

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