This is a permmenet code so only way I know to erase this is by fixing the problem. Not sure if a good cleaning of MAP sensor will fix this. I can't find any info on this code anywhere. Please help. FYI..... 2017 ram Ecodisel. 97000 klms. EGR box was replaced under recall about 30000klms ago. I do sit and idle alot. I'm a security guard on different locations every week 12 hr shifts and idle alot. Re gens every morning when I'm driving first thing alot of smoke for a few miles. Runs fine. Any info would be great.