Originally Posted by ps2cho

For a free test, you may want to give the EHA a small turn....I had a number of bottom end problems on my 260E that were completely resolved after I gave a 1/2 turn clockwise (rich) on the EHA. I recommend you write down exactly how far you turned and mark it so if you need to turn it back, it won't be a problem. Giving a 1/4 or 1/2 turn will raise BAR pressure in the lower fuel distributor chamber that just makes up for general wear and tear over the years throughout the system.