Alright so I had my valve cover, valve cover gaskets, spark plugs replaced with ngk iridiums I believe. There is no check engine light but my coworkers who work at an auto parts store with me told me that my car is running rich? They said they smelt fuel when I turned on my car. Is this normal? My car runs okay. It idles a little weird on cold starts but once warmed up its fine?

 

You have an ODB scanner that can monitor fuel trims? That can tell you how you're running. You'd have a CEL most likely if you were though.

 

Don't you need Osiris for that?