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Mitsubishi Galant A sporty mid-sized sedan offering the perspective buyer a change from the normal mid-size sedan class.

P0421 code, 2002 4cyl Galant

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Old Mar 21, 2011 | 05:12 PM
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niteman's Avatar
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Red face P0421 code, 2002 4cyl Galant
New gas cap and o2 sensors, do I need acatalitic convertor ?
 
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Old Mar 21, 2011 | 06:23 PM
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More than likely.

Take it off and take a look at it.
 
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