The Mercedes suddenly was down on power starting early June; not sure exactly as a lot on my mind. Finally got the boost gauge installed about a week ago and only producing a couple pounds unless I really load it for a couple minutes then might hit 8 p.s.i.. So decided to try without the A.L.D.A. the only difference is spooling a tad faster and on the freeway sits at about 4 p.s.i..

So the question is what is going on?

If the turbo charger was bad, wouldn't it produce no boost? Why would it drop? Do they need to be continually adjusted?

Thank you so very much in advance!

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Current fleet:

1985 Mercedes-Benz 280TE - Waiting for heart surgery.

1985 Mercedes-Benz 300TDT - Rear ended 23 September 2016 and now looking for a new home.

1979 Mercedes-Benz 300TD - Parted out.

1964 Volkswgen Beetle - Vater's since September 1968 and undergoing a restoration.

1971 Volkswagen Sunroof Squareback with F.I. - in need of full restoration.

1971 Volkswagen Squareback automatic with F.I. - Vacationing with her caretaker until he is in better health.