My girlfriend has a 1993 corolla, with a little over 200,000 miles on it, manual transmission. It has been running great until a couple days ago. Driving back from Seattle, we noticed the car hesitating while driving. With the gas applied, it seemed as if the car was hesitiating forward and backward, it seemed as if the engine wasn’t getting enough gas. This happens in all gears, but less so in 5th I think. The next morning, while stopped with the clutch in, the car seemed to be always on the verge of dying out, with the RPMs dropping, and then revving back up constantly, right before it seemed the engine would die. The engine hasn’t actually cut out yet, but it seemed very close. We shifted into neutral and the same problem was happening, so I don’t think it’s a clutch problem. I’m wondering what the problem could be, and the fix for it.
Thank you for reading, if there is any other information I can supply, let me know.