I'd hazard a guess and say you bumped off a vac connection somewhere, a boost signal from the turbo to the ALDA on the IP may not be getting where it needs to go, My suggestion is to check them.


also check your linkages, make sure they are not binding up, etc

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hum.....
1987 300TD 311,000M Stolen. Presumed destroyed

I have to agree. I'd venture to guess you may have even snapped the banjo bolt line at the back of the valve cover, I've done it a few times myself. They get brittle over the years and become easier to snap than uncooked noodles.

edit: I see you're in Washington, do you make it into Seattle often?