Back sometime ago, I asked a similar question and Dave W provided an answer which was to move ALDL wire from Pin E to Pin M. I recently did this by cutting the wire and attaching male and female connectors. The net effect has been "no go". I have access to a SnapOn MODIS scanner and the resulting message is unable to connect/communicate. I am not able to read anything which signifies no connection.

I am running a self-made ECM-to-PCM adapter between my stock harness and an 8625 PCM. Any thoughts/suggestions?