I have Mazda millennia 98 and the emissions test failed. They gave me a code...

  • Thread starter Thread starter i need help
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i need help

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...DTC4. Does anyone know what is? Please help me out. I don’t wane go to the car dealer ship so I can get charged too much. I just need to know what the code means so I can get someone to repair it for me. Thank you
 
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