Mitsubishi Galant Catalytic Converter Rotten Egg

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1999 Mitsubishi Galant 99 Mitsu Galant-P0421 Failed...

1999 MITSUBISHI GALANT
Hello, I've Had This P0421 Code For The Last Couple Of Years And Have Passed At Least 2 Emissions Inspections. The Light Has Been On For...
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Asked by kendu90

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