Got my check engine light analyzed and it was 5 hits for a loose gas cap. My original 2010 Tundra cap was the one-notch type, and I replaced it with a ratchet type. Disconnected the negative battery post and the light went off. Now after about 120 miles of driving, it's back on again. Question is, what will generate the loose gas cap error message other than the cap itself? Appreciate your help!