I just got back from a 300 mile round trip to PA and when I backed into my driveway and put the truck in park I got a CEL, well I checked the code with my superchip and it gave me P0406 EGR Position Sensor Circuit High... Any suggestions or do you think I need to replace the EGR valve? The truck runs fine but I can't clear the code. The only thing I did recently was put a CAI on for about two days and then went back to stock but that was on Tuesday that I returned to stock and have been driving the truck each day since with no issue. Any suggestions or help would be great... I had this in another section but the general talk gets more traffic.
Update: This is strange, I let the truck cool down and now I have no CEL at all and no codes??? Could the truck have just been hot from sitting in traffic or is this some kind of fluke. I am confused...
Update: This is strange, I let the truck cool down and now I have no CEL at all and no codes??? Could the truck have just been hot from sitting in traffic or is this some kind of fluke. I am confused...