Well well gas cap was off did not tighten, caused the Engine light come on. 150 mi. later it is till on. Forget going to Auto Zone a waste of time they do not clear codes, want to sell you a gas cap. got the code and may head to return a Walmart reader if I can. I need to clear the code within hours. unless I mail my reader down or take it down the next time, Do not think there is another way to clear this but time. can find a person who is nice to lend me a reader for 2 minutes and say thank you