X5D error codes 4D16 and 46A4

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X5D error codes 4D16 and 46A4

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02-27-2015, 12:11 AM

Jeffkukuruda Jeffkukuruda is offline

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Join Date: May 2012

Location: Boise, Idaho

Posts: 43

X5D error codes 4D16 and 46A4

So my CPO warrantee just expired and at 100,400 miles I got these two codes, 4d16 and 46a4, and a CEL. I reset them and the codes stayed away for about a week. All the reading I have done points to either a dirty metering valve or a faulty aft NOx sensor which appears to be a $601.00 part and gamble at this point. Has anyone had this specific set of codes with a suggested way ahead?

Thank you in advance.

-Jeff

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