P2459 Code....DPF Regeneration Frequency High
Just this past Wednesday, I ran into an issue regarding excessive regeneration with the ol’ 4500 on a trip to Salisbury, NC.
I had another run to Knox, IN Thursday and called Ken @Indytruckchampion on Friday.
He has a great tech there named Matt. He worked hard on trying to get another truck finished up Friday to begin diagnosing mine, but he ran into an issue that kept him on the other truck through quitting time.
I spent another night in Indy, and he got started on it first thing Saturday morning. The only CEL thrown was P2459....dpf regeneration frequency high. Upon diagnosing some things, it appears I have a compressor outlet temperature high issue. It was reading 205*F after sitting in the shop all night at ambient temps of about 60*F......all others sensors were reading current ambient temperatures. The EGR valve was dirty, and it was cleaned as well.
A call into STAR pointed Matt to check a couple of other things. After those checked out fine, it was escalated to someone at Cummins.
Hopefully I’ll have more info Monday.
Just this past Wednesday, I ran into an issue regarding excessive regeneration with the ol’ 4500 on a trip to Salisbury, NC.
I had another run to Knox, IN Thursday and called Ken @Indytruckchampion on Friday.
He has a great tech there named Matt. He worked hard on trying to get another truck finished up Friday to begin diagnosing mine, but he ran into an issue that kept him on the other truck through quitting time.
I spent another night in Indy, and he got started on it first thing Saturday morning. The only CEL thrown was P2459....dpf regeneration frequency high. Upon diagnosing some things, it appears I have a compressor outlet temperature high issue. It was reading 205*F after sitting in the shop all night at ambient temps of about 60*F......all others sensors were reading current ambient temperatures. The EGR valve was dirty, and it was cleaned as well.
A call into STAR pointed Matt to check a couple of other things. After those checked out fine, it was escalated to someone at Cummins.
Hopefully I’ll have more info Monday.