SPN-3490 Aftertreatment purge air actuator
07-12-2020, (Subject: SPN-3490 Aftertreatment purge air actuator ) 
Post: #4
RE: SPN-3490 Aftertreatment purge air actuator
Oh, and if I remember correctly this code will not go away/turn off the MIL unless you clear it directly. It may have only triggered briefly and gone inactive but will continue to display until manually cleared. That's what was happening with my truck.


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RE: SPN-3490 Aftertreatment purge air actuator - JimT - 07-12-2020



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