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emissions test failed

  

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i ran a diagnosis test on my 2015 chevy malibu no codes ran the scan 3 times but when i did an emissions test i failed it with a couple errors should i be worried? do i have to change any partts on the car?


Clarification: Mileage?  Also, can you list exactly what you failed? Was it OBDII Monitors? (If so, which ones?)


1 Answer
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What do you mean by errors? Do you have incomplete modules?


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