so i got a 1995 s14 recently and i have this problem that when im idling, the car has this breathing noise where it like revs up then down then up then down over and over. i dont know what it coud be, anyone know? it also makes this bubbly noise when i drive out of my exhaust. wondering if anyone can help
thanks
~greg

 

check vacuum hoses, there could be a leak causing it to do the revs, also could be your maf

 

thanks
will do