I took my car to smog and it failed here what the paper said.It fail fuel cap functional and fuel evaporative controls functional and nox where to high I was told.Are all this related problems.Something I did notice as soon as I got home i check under the hood and the evap purge solenoid was soaked only that any help please also I don't know if its related but the egr valve hose is disconnected and have no idea where it goes