Q: Car runs rough, turns itself off & shakes

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My car is running rough, turns itself off when I brake at red lights, and it is also shaking. I took it to both a dealer and also a car repair shop. Both told me that my car needed a tune up and two sensors needed replacing, which I had them to do. After thousands spent, the problems still exists. They didn’t fix my car! Now, no one knows what is causing these problems. Can you please give me your diagnosis and solution. Thanks.

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