Having owned my Tiburon for almost 5 years now, I think I've had just about everything that could go wrong with it, do so. Without boring you with the details, I'll simply list the problems I've had.
Check engine light is always on.
Very rough idle and no power after fill-ups (tank pressure perhaps?)
No squeelers on factory brake pads, causing me to grind right into the rotors without warning.
Cable harness under the dash melted, causing smoke to poor into the cabin
Clear coat flaking off of rear spoiler
Windshield wiper washers strip very easily
Problem with interior light, they don't reliably come on
No headlights (just happened last night, I assume it's the emergency brake switch)
As everyone says, it's a good looking and sporty car, but riddled with problems.
Hey, I have a 98 FX also. I have had a few minor things go wrong, but nothing too bad.
That's weird with your no performance after a fill up; never had that before.
I don't understand the wiper thing, you go through them fast? I don't get the cheapest ones, but also not the most expensive ones, and they last fine. I don't think that has anything to do with the car, it has to do with the ones you buy? I don't know.
Anyways, my OEM brakes had the 'sqeely things' on them; they also lasted me like 185 000km.
I also meant to tell you that with the headlights not working, it's likely the relay, mine did the same. If you can don't buy it from dealer, usually they over charge. I bought a bunch of back-up relays from a web site that is in Korea, and is OEM parts, Fourgreenauto. It's way cheaper then the dealership for the same parts, and it only takes like 3-5 days usually to get to your door. We have gotten stuff from them in 2 days before.