Codes PC0300, PC1139, PZ2719

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Northstar Engines and System Technical Discussion Discussion, Codes PC0300, PC1139, PZ2719 in Cadillac Engine Discussion; Hey guys i just puylled these codes out of my 96 deville anyone got any ideas what they are? thanks...
  1. #1
    Hason560 is offline Cadillac Owners Member
    Join Date
    Oct 2003

    Codes PC0300, PC1139, PZ2719

    Hey guys i just puylled these codes out of my 96 deville anyone got any ideas what they are? thanks

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  3. #2
    BeelzeBob's Avatar
    BeelzeBob is offline I'm a Cadillac Fanatic!
    Join Date
    Dec 2002
    Fort Lauderdale, Florida

    Re: Codes PC0300, PC1139, PZ2719

    PC0300 Misfire diagnostic code - indicates a cylinder is misfiring
    PC1139 Preconverter O2 sensor lack of activity - possibly caused by the misfire
    PZ2719 Universal theft deterent - trunk tamper switch fault

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