I recently just had a tune up that included changing spark plugs and the distributor cap. When I stop at a stop light or sign my car has a rough idle. Even if I rev the engine the car still stalls. I've also just had the battery replaced. My festiva is also eating oil so much so that I have to refill it every 2 weeks or so. I've tried looking at forums but it's kinda hard to read mechanical jargon. Does anyone have a suggestion about what it could be? I've taken it to the shop several times so I can't really afford to take it to the shop again. Any help is appreciated.