Car starts fine first thing in the morning/leaving work, or anytime it has set for an hour or more. If I come back to try and start after just a few minutes, say if I run into a store and get something and come right back out it doesnt want to start. It kinda acts like it doesn't get gas, but then will back fire. I will turn the key to the off position and turn to start it again and it will fire right up. Does this everytime if the car is warmed up. I have tried a variety of methods to get it to start on the initial try, like pumping the gas... every great once in a while that will work, but most of the time it doesn't. anyone else have an issue like this before or heard of someone else having this problem?