My '21 Freewheelers check engine light came on today on my way to lunch. Turned around ( ) and found code P2 135h. Something to do with my throttle sensor. Did NOT clear the code. Restarted the trike and went to lunch. No check engine light reappeared. After I got back home I went in to clear that code, but it indicated there were no codes. Was this a phantom code that disappeared miraculously?