So I was just cruising, no big deal, when the engine light came on. I pulled over and checked all of the fluids, nothing out of the ordinary. The gas cap is tight. I called the dealer to get them to hook it up to the computer and they want $75 for the reading alone! He said as long as the light isn't flashing it is probably just an o2 sensor knocked loose or something minor like that. Does any of this sound right?