Well ive been fighting with a CEL that goes away and comes back all the time. Sometimes when i reset the comp it will go away for about a week then it comes back on till i reset it again. Or the odd time it will just go away itself, but that doesnt happen anymore. Im curious because i bought a new EGR valve hopeing it would fix this problem, but it hasnt. Is there something else it could be? Im getting tired of seeing the CEL on the car. I heard someone say that i need to clean the egr passages, but im not sure what passages they mean. Just a few days ago i did the UIM and LIM intake cleaning thing with the vaccuum lines but the light is still on. Please help
