I went into Dana brothers because I had a dummy light coming on. Dana brothers checked the code and said it was my fan clutch and electric wastegate. There quote for fixing both was over $1000. I had them reset the codes and decided to fix it myself. When I went underneath the truck to replace the fan clutch I noticed that the waistegate wiring harness was left unconnected. I replaced the fan cutch and reconnected the waistegate and the truck has worked just fine the last seven months. A good mechanic does not leave a harness unconnected. I do not think that there was anything wrong with the waistegate. The truck also did not perform correctly with the harness unconnected.