I just checked it yesterday and the light bulb was there but it wasn't tighten. It was very loose so that it would not turn the light on. Now that it is on the engine light is on. I kinda figure that the engine light was suppose to be on when i failed the emission test using obd2 and was told that there was suppose to be a check engine light. I have to ask another question what can cause alot of build up in the gas cap area. It build too much pressure and the it tosses an engine light and won't let me pass emissions.