Although I find it interesting that there is such a vast difference in the number of times the word Jesus is found in different translations (e.g. 900 times in KJV and 1800 times in ERV), but I'm guessing that has to do with the translation and not the search function.
Yup, I checked it out, it seems every other time the ERV uses the name of Jesus, the KJV uses the word "He".
So that's no mystery