[foneman611]

I am trying to get my car through emissions inspection.I started out with 2 codes 0303 and 0401.The 0303 is a misfire code. I replaced plugs and wires and replaced all 6 injectors and car runs great got rid of 0303 code but still has 0401 code which is an egr code. Tried to get a waiver due to money spent but must pass a curb idle test with sensor directly into tailpipe.That failed for too many hydrocarbons.The egr valve was replaced at last inspection and was passed through but check engine light came back on about a week later(this was 2 years ago). Didnt bother checking because car ran great and had passed inspection. What else can cause this 0401 code besides everything that was allready replaced. Could the egr valve have been faulty from the get go? Is this 0401 code causing the ecm to make the car run too rich which I think would cause the hydrocarbons in the exhaust?