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Discussion Starter · #1 ·
Please help. I recently put on pcv kit. Now all these codes came up today while driving.
Can anyone help please?
Thanks
 

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2015 CTD
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Not sure how a pcv kit would hurt it.

Most likely o2 sensor took a dump.

Pretty easy to test it and the wiring to it with a DVM by doing a quick search.

It most likely has four wires.

If it is bad replace with an OEM sensor.
 
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