SPN-3490 Aftertreatment purge air actuator

[JimT]

(07-12-2020 )Godsplan15 Wrote:  Is it possible that the issue could be because of a air fryer filter needing to be replaced? Just an idea

Good question. Probably not, but you should replace that filter once or twice a year depending on ambient conditions and how well you maintain dryness in your air tanks. I do mine every 6 months, in fact that reminds me I'm coming due some time in the next month!