Chevy/GMC Sierra 2500 6.6L LML (P204B) DEF issues

2013 Duramax LML, P204B Reductant Pressure Sensor.. (service emission system)(Leak in the system) (DEF issues) here's a little tip hopefully it would help you.. if you don't have a scanner or anyting to reset the emissions, force Regen and purge the system.. I recommend taking it to your local diesel shop and ask if they can, (purge the injector, reset def system and a regn) .. but it can also be done manually.. after a few drive cycles and a few miles..(keep your fingers crossed)