My 2005 Durango with a 5.7 hemi has the ETC light and the check engine light on the ETC light is on solid and I do not have any stalling, rough idle, or any apparent running engine problems. I did replace the throttle body and it started up just fine ran smooth went on a drive. drove it for one day and the second day on the highway the check engine and etc light came on again, but once again the engine runs smooth even better than before. What else can be causing a solid etc light to come on again if not the throttle valve?

 

Need to get the codes read to find out.