Mines a 02, it was at 230K when the engine let go and I'm at 250 now.
What I think happened is that the catalyst came apart internally and with the cats close proximity to the heads, all the dust and debris got scavenged back into the engine and took out my rings. It had been burning lots of oil up to that point. I got the doug thorley log tube headers that eliminate the cats along with a new clutch when i did the rebuild, I know this thing inside and out now which is sweet cause i tend to also take it to far off places, it's always in the back of my mind though… ah shit what if the fuel pump quits way out here thats a long walk haha. I've finally got myself a bit of a trouble kit with full tool set and compressor/chainsaw.
Buddy of mine had the same thing happen, only he caught it slightly earlier than I did.. only he was still to late cause now it has some nasty piston slap when it's cold and also burning lots of oil (1L per thousand k) so I wouldnt dick around if you see that code get rid of them things)
If you've changed the dizzy you should be good to go! The knock sensor doesnt really do a whole fuck of a lot on the N/A engines, but on the supercharged ones it retards timing and limits boost if its blown.
for maintenance, these things are supppper picky about spark plugs, they have to be the NGK's that the owners manual recommends.
I like to run Mobil 1 for oil and avoid fram filters like the plague.. Mobil 1 makes a good filter as well (I always look for the ones that come plastic wrapped)
I changed my MAF sensor a few weeks ago and have basically got an extra 100KM of HWY range per gas tank and way more power.
Ha Ha! Made you look.