[rentacop911]

I know that P1451 means DPF performance issue.......Does that mean I need to run my truck on a longer trip so it can regen? any help is appreciated.....
2007...6.7..6spd Manual...stock...

 

[SLR]

Have the dealership apply Service Bulletin 11-002-07 COMPLETLY! Then have them apply Service Bulletin 18-013-08 which is to apply the latest flash. That should take care of the issue. Oh, and try not to idle it too much. Some is fine, just not too much.