My wagon has been taking a few seconds longer to start the last day and a half, and today I noticed a strong smell of raw fuel coming from under the hood. It's also very noticeable inside the car with the vent open and the air on. I checked the fuel filter, and the lines coming off the filter; all look good with no leaks. The car currently has 94K miles on it. Is it possible an injector is leaking? I'm not sure what I should check next, any ideas?