dpf purge air actuator engine faults

[1mattrichert]

I talked to a tech that had another truck with a similar issue, throwing the same code every few days. They put a test ECM on after replacing a bunch of parts and getting nowhere, even the wire harness and that was the problem. So im having the test ECM put on but wont know until ive ran for a few weeks. Then I can move along to the EGR tune up. anybody trucker bretheryn with similar problem let me know.