Stay running problem

[gpaulcarver]

I am one of those "lurkers" that is referred to in this forum. I like
to look and learn but now have a question I hope someone can answer.

We have a BB with an 8v92 Detroit. She will start fine, runs for about
30 seconds,on high idle, the check engine light comes on and she dies.
She dies within 10 seconds on normal idle. She will restart but
continues to die.

I have read on the forum something about the codes flashing. I am
assuming that is the sequence of flashes under the "do not shift". If
I am correct so far, be advised there is 4 flashes. What does this
mean? Does anyone have an idea where to start? Any help/ideas would
be appreciated.

Paul & Jo Carver
1993 WB
La Verne, CA