nw13

ok so i recently swaped out my d15 for d16y8 and the guy who did it said i had a bad aicv, so i got another on and nothing changed, then i put the old one back on and the idle surge went away but now i get really bad throttle respons and it smells like gas. so maybe i spilled coolent on the o2 sensor? idk but the car starts up then either dies or i put it in gear and the car dies. so i searched and seached and i havent found anything on it except that my o2 sensor may be bad. anyone got any ideas? i would really appreciate it thanks