Mazda 626 P Codes (Powertrain) P0400 - P0499 P0421

Browse Mazda 626 P Codes (Powertrain) P0400 - P0499 P0421 questions and answers. Choose a question that matches your symptoms.

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2002 Mazda 626 Check Engine Light With Code P0421...

2002 MAZDA 626

Car: 2002 Mazda 626 Lx 4cyl 2.0l The Check Engine Light With Code P0421 Goes On When The Car Run City Miles, And Goes Off When Running...

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Asked by sunny0219

MAZDA 626

I Have A Mazda 626.2001 4 Cyl. Auto. 76k. Check Engine Light Came On. Autozone Checked And Code P0421 Came On. The Counter Guy Suggested A...

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Asked by irish81449

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