Thor Forums

[JimSpy]

Originally Posted by The Gritz Carlton

The DPF (Diesel Particulate Filter) cleaning process is fully automated...as you drive along. If most of your trips are short, the cleaning process sometimes may not have time to complete it's cycle and soot will back up, requiring an occasional manual "regeneration". Normally you will get a light on the dash indicating this. Your DEF can get old as well, preventing full cleaning...but, you should get a message that the fluid quality is bad prior to having any issues. Not sure of the year model or mileage on your unit but what they are telling you is suspect. What do the codes you mentioned indicate?

That is consistent with what they told me. These guys are pretty stand-up. They said they don't do the regen there, they don't have the equipment, so they weren't trying to sell me anything. And they only charged me $135 to flush the pink stuff out of all my pipes, and do a top-down inspection of the coach and chassis.

The codes are:
P204F
P20BA

OBD-codes.com says something about the PCM finding a malfunction in the SCR system, and all mimsy are my borogoves, and my mome raths are outgrabe, doo-dah, doo-dah, God save the Queen, and cuckoo for cocoa puffs. Maybe it makes sense to you?