Thanks
Thanks. Here's what I did....
1. Took off the throttle body and cleaned a ring of crud off the butterfly and throttle body. I didn't have a new gasket handy, so I reused the old one, but there were no obvious signs of damage.
2. Pulled out the PCV and blasted it out with carb cleaner. It seemed a bit oily, but not totally gummed up.
3. Changed the plugs. The right 2 were covered in oil. I'm guessing I have a bad valve cover gasket? I didn't change the wires. I believe they are original. The car has 115k miles on it. I was just outside looking at them in the pitch black, but didn't see any arcs. Think I should replace or keep going?
I started it up and so far so good. It doesn't have the low idle problem all the time, so I'll have to drive it around a bit before I know if the problem is gone.
Thanks again for the advice. If you've got any other pointers based on what I said above, please let me know. I'll reply in a few days to the thread and let everyone know if the problem clears up.