whats wrong with my EGR valve? on 1996 Toyota Corolla

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I put a new egr valve on my car about two months ago and my check engine light is still on. can someone please give me some different options and details i can check so that i can pass my emmissions test. i only have 3 more days until my sticker expires and i dont want any tickets. pls help..
(1) Answer
the tube could be clogged. the intake passage could be blocked, the back pressure valve could bad, vacuum leak, and possible bad dpfe sensor. it is not an easy fix. you need a scan tool to monitor. code numbers never identify bad parts, just failed systems.