whats the best way to check to see if your egr is workin properly? also will it always throw a code when defective?
I dont know about the egr, but I have had other sensors fail on me and not throw a code...
98z24, lowered 2", aem intake, cat-back striaght pipes!, cop ligths in the front and rear, 18" liquid metal's, primer black, tint, full audio and video.
