[s-cars] Intermittent stall

[Duncan Thomson]

Hey folks,

I know I should probably do a lot more searching before I ask, but email
volumes seem low!
I am getting an intermittent stall at idle. It is a clean cutout, and the
engine just goes straight from running smoothly to stalled, instantly.

It seems to do the same thing when running, but with some extra revs on it
catches again and keeps running.

Any ideas where I should look first?

Is it possible I'm losing spark on 3/5 cyls from a dodgy POS?
More likely to be Crank position or something else?

Any advice gratefully received!

Cheers
Duncan
'93 UrS4 Avant