Some vehicles may exhibit malfunction indicator lamp illumination with diagnostic trouble code (DTC) P0420...
Mazda technical service bulletin 0100301 for 1997-2000 Mazda Millenia.
- Bulletin number
- 0100301
- Component
- Unknown or other
- Summary
- Some vehicles may exhibit malfunction indicator lamp illumination with diagnostic trouble code (dtc) p0420 / 0421 or p0430 / 0431 stored in memory with no driveability concerns present. This condition may be caused by an overly sensitive rear oxygen sensor(s), which fasely indicates an emissions concern and a dtc to be stored. Tt
Vehicles covered
- Mazda Millenia 1997-2000 1997199819992000
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