Sounds like the issue was resolved but I had a similar problem and it turned out to be an issue in the DME that was resetable with a Hammer (the term applied to the OBD 1 tool used to read codes). I had a code that needed to be reset for the idle circuit. It took a couple tries.

 

OMG, thank you so much for this link. It really gives me hope that I can get to working on my car soon. You guys on this forum are phenomenal.