Hello. I have an 02 Santa Fe with the 2.7, 4x4. This started a few weeks ago. When it is first started, it cranks over for a few then starts, idles 1500-2000 rpm. It is a little hesitant at first, but will eventually run fine. If I go to the store after it is warmed up, shut it off, then go back to start it again after shopping, it does the cranking over for a few, and when it starts, you can smell gas (strong smell). when you go to take off, it hesitates real bad, backfire rumble through the exhaust, has no power, bucks, and you have to feather the throttle to keep it running. If you put your foot to the floor, it does nothing, 20 mph if your lucky. if you can keep it running long enough without it stalling, which it has done, and hit the highway, and get going, it will eventually work itself out and run ok again. There is NO CEL. If anyone has any ideas as to what is going on I would really appreciate the help and the advice. It is getting worse. Thanks