I have been exhaustively chasing down a slow acceleration issue ever since I bought the car a few weeks ago. From reading this site, I naturally started with cleaning the ALDA lines and there was no change.

I won't list everything else I tried here, but it was several full days of work until I eventually came back to the ALDA. Bought the [EDIT] 24MM wrench, took it off, and holy COW this car now JUMPS off the line.

Bottom line, if cleaning the lines to your ALDA and overboost protection switch doesn't give you more power, try removing the ALDA.

I'm going to attempt to fix mine and put it back on because the wife doesn't want to have to worry about a pyrometer.

Any tips where to buy the seals for the ALDA, please share!

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1986 300 SDL, gray on black, #14 head, 180K miles
1982 300 CD, silver on palomino, 290K+ miles [sold]
1980 300 SD, white on palomino, 500K+ miles when retired [uncle's car - inspiration for the above]