Q: Engine dies when I take my foot off gas pedal.

Hello. If the engine runs fine when you are holding the accelerator pedal down and dies when you release it then you may have a couple of possible issues. I would first check the vacuum hoses going to the engine. If any of them are loose or leaking, this will occur. If they are fine then the throttle body should be cleaned. If it is dirty it can starve the engine of air at idle. If nothing turns up there then you may have a bad idle control valve or air flow meter. Both of these will require more specialized equipment to diagnose. I would recommend enlisting the help of a certified mechanic, like one from yourmechanic.com, who has the right tools and knowledge to so this.