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Old 06-29-2020, 12:27 PM   #1
Junior Member
Join Date: Aug 2003
Posts: 20
SPN 3031 error code

Has anyone had any experience with this code?

Spartan said it is a DEF temperature sensor. They said to wait to see if it manifested into anything else.

I went on a 3 hour trip and returned with the check engine light on the entire time. It even did a regen on the way. When I went to park it in the barn after we got back the light had gone out.

I am wondering if this is something that will turn back up. Spartan said these things don't usually repair themselves.
David O
2019 Entegra Aspire 44B
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