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OBD (II) - P0354 - P1096: P0421: Diagnosis/troubleshooting: Notes

NOTE:
  • The diagnosis function compares the actual amplitudes of the rear oxygen sensor with the amplitudes of a computed model. These amplitudes allow conclusions to be drawn about the ability of the catalytic converter to store oxygen.
  • The diagnostic conditions can also be 'enforced' by the "catalytic converter" short test using the 9588 Porsche System Tester II.
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