My cylinders 1,3, and 5 are misfiring, what could cause this? on 2003 Hyundai Tiburon

I'm driving along on the highway, I go to accelerate and my cars bogs out, completely stops at 4k rpms, can't push any further past it, I let off the gas, at this point my motor sounds like a go-cart engine, I push the gas again same problem...a test shows my oxygen sensors malfunctioning, cylinders 1,3, and 5 misfiring and a random misfire, what could cause all of 1 side to misfire?

Asked by for the 2003 Hyundai Tiburon
4 answers 4 comments
Have exhaust flow checked. Possible failed cat. converter.
I only have 1 Cat. converter, could that still be the issue?
Have exhaust flow checked. Possible failed cat. converter.
It's not the Cat. If that engine has cam position sensors for each bank you may have one going bad.
wouldn't that set off a different code though?
Not necessarily. If the input side of the sensor is ok the computer can't tell it's bad, it sees the result which is the misfires. The CPS is just a guess mind you. I can't think of anything else that would only affect one bank, but I don't know that particular engine.
If it's always running bad it could be that the timing belt jumped, but it sounds like it's an occasional issue.
Not necessarily. If the input side of the sensor is ok the computer can't tell it's bad, it sees the result which is the misfires. The CPS is just a guess mind you. I can't think of anything else that would only affect one bank, but I don't know that particular engine.
If it's always running bad it could be that the timing belt jumped, but it sounds like it's an occasional issue.
It's not the Cat. If that engine has cam position sensors for each bank you may have one going bad.