newellshk pointed out to me that there has never been an ADS or ADX uploaded for these PCMs, an ADS has been in my archive since 2009, I guess now is as good as time as any to post it.

so..... information explosion here:

http://www.10000cows.com/stanadyne-ds4.htm

Stanadyne DS4 and GM PCM.... yea, quite a piece
of work.

The Stanadyne DS4 injection pump has a few issues......