I am having trouble with my 93 Hyundai Scoupe. It idles at 4000 rpm's sometimes and then sink all the way to almost killing the car and sometimes the car will die. Also, as I am driving the car will start chugging like it is running out of gas and sometimes very violently chugging. Do you know what is wrong with it? Please, write me at XXXXX@XXXXXX.XXX. Thank you so much.
Optional Information: 1993 Hyundai Scoupe non-turbo
Already Tried: fuel filter, oil filter and change of course, oil treatment, fuel injection cleaner and gas dryer.
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