Just changed the valve cover gasket and 15 grommets on my e46. Previously, it smoked some and smelled like burning oil at idle. I put everything back together and took it around the neighborhood. Well it smelled like burning oil and about 5 minutes in, the yellow oil light came on. I immediately shut down the car and a good bit of smoke was coming off the exhaust side of the engine. I waited a few minutes and drove it back to my garage. Did I install it wrong? How should I check? Thanks!