Interesting tid-bit: I was going through an old notebook last night looking for any notes on the last time I adjusted the DC on this car. I found some scribbled references to what my DC was back in '09 and, to my surprise, my DC back then was 90%.
At the time I was dealing with a low-idle with the A/C on problem. I replaced the EHA (leaking) and tweaked the DC, but I have no notes as to what I ended up tweaking it to, if I managed to adjust it all. (Memory is crap...) But it's run fine in the 2yrs since...
So now the question is, wtf could have been slowly degrading over a period of years, gradually causing a leaner condition??
Ring any bells for anyone??