i have a 1997 sportage im having problem with it getting warm and then intermittenly more often then not it will llose power i can put petal to floor n wont go it doesnt sputter but it did cause it to shake once in a while. i have checked plugs n they are burning good. it has never shut it self down yet however i usually cut it off n wait a minute or so n start it back up n then it runs good for a little while then problem comes back n i go threw same routine. it is an automatic mileage is 130000 or a little more. also on startin on a hill it will loose power every time even when motor is cold it will like fall flat on its face. i have never smelled fuel in the exhaust n i know its not the cat, cause it never smells like rotten eggs n it feels like its pushing pressure out the tail pipe. i did think it maybe the feul pressure regulator but i dont know how to check that, i also bought some chevron techron to run threw it, will try that in the morning. thanks again for any help yall can provide me.