Can someone help me understand what these codes are P0455, KOER, MIL Command Status concerning my2002 Dodge Dakota SXT and emmissions. Thanks

 

Welcome to DF

The most common problem to cause this code, is cracked hoses for the evap system. Inspect all the hoses, even the hoses going under battery. Thats if your truck has a LDP pump. I will move you post to the 2nd Gen Dakota section.

 

KOER - key on, engine running

MIL - malfunction indicator lamp

 

May also have Vapor Canister Purge Valve.