I had a "Chek engine " code that idicated EGR valve enoparable. I removed the valve. How do I test it?
So far all I did is blow/sucked some air through the
vacum port and noticed that the air was moving freely and
the membrane inside did not move.

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Dmitry
90' 300CE
17" Intra Signums
Brulen mufler
Euro Headlights/Clear Blinkers
White gouges (made my own)