Sorry about that.  Hit the wrong key.

     I have gotten my van running.  I pulled the idle stabilizer out to check it.  After running some tests using a multimeter, signel generator and logic probe. I found no obvious problems.  I cleaned up the contacts and reinstalled the stabilizer.  The rich mixture problem has disappeared.  I think that one of the signals that the ECU and the idle stabilizer share was shorted to another line.  
     I hope the problem doesn't come back.

Colin Moran
1986 Syncro GL
"The Bronze Brick"

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