97 vw jetta 2.0 Engine codes 171 and 1476

I have replaced pcv valve it had yellow smudge coming out,and it also it had no hoses coming out air filter cabin so we put them on I'm not positive they are in the proper place can't find a vacuum diagram
It runs good no rough idle or stalling no Symptoms that would come with those codes But I can't pass smog because of those codes I don't know what to do
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Answers
I can't say it's the right answer, but it's an educated guess, so unless you want to take it to a qualified technician, this is the best we can do for you from this distance. Good luck with it.