[gacook]

Looking for a little assistance troubleshooting my 2003 Nissan 350Z, and I know there's some brilliant minds here within the braintrust. So, here's the deal.

About a month ago, I could feel the car kinda "missing" occasionally, and the exhaust note would lightly sputter. This happened twice, then would clear itself out and run smooth. Another day, it happened for about 5 minutes and then threw the check engine light. Code was a "random misfire." Car has approximately 120k on it, so I changed the plugs (don't know when that was done last). Went fine for a couple weeks, now it's doing the occasional sputter again.

So, what I'm looking for is the likely culprits. I do most of my own wrenching, but I'm still not great at diagnosing. My thought process currently is replacing O2 sensors, and possibly replacing the coils. Does this sound right, or should I be looking elsewhere?

Thanks in advance.