I did disconnect the battery for 2-3 minutes and so far it has not come back on and this is going on 2+ weeks. If it is a sensor problem how would you check?

Update: P0302, P0300, and P0304 (in that order) was displayed by the reader when checkedIgnition system fault, cylinder misfire, high/low fuel pressure (gas cap), etc.She's going to call the dealer to see if they'll look at it. If it was the gas cap, how long would it take for the lights to come off...

First time poster on here.My wife and I just purchased an '09 Vibe with about 45k miles about 6 weeks ago. It's her car, so naturally when I take it for a run to Wal*Mart something goes wrong...It had been a dark and stormy night last Friday night/Saturday morning, and I'm on a run to get groceries,...