Stopped at a light the other day on the way to work and the engine sputtered
and died. Wouldn't restart even with the MAF unplugged (causes a limp-home
mode).

Towed to a shop (I'm on a deadline at work so couldn't futz with it myself)
where they finally got it to start. It sounded like the ignition would cut
out intermittently at idle when hot. Wound up throwing a new crank angle
sensor in it and so far, seems to be running well. As a test, when it died
initially, I had put a bit of sheet metal under the EGR valve to block it
off since I was thinking that it hadn't been closing properly and giving me
other issues. Block-off is still in place and check engine light is on
though displaying only EGR related issues. Without EGR, the knock sensor
will just cut back the timing so no destructive pinging that I have to worry
about for the moment.

Figure if all is well, in a few days will pull out the EGR valve to inspect
and replace if necessary.