On the interstate mid-route, the engine light went on and the car started acting sluggish and slightly shaking on the interstate and would not respond to pressing the gas to accelerate and started to slow down. When I pulled over to the berm it was vibrating as if it was going to stall out. I turned the car off and returned to the interstate with no issues for the rest of my ride (the engine light remained on). On the next trip to the dealership for an appointment to have it checked, I was merging onto the interstate, and again, the car was not responding to me putting on the gas and would not accelerate. Could not push the car over 35MPG, and had to ride to the dealership with the car varying in speed anywhere from almost a complete stop to 30MPH on the berm where I could with flashers, often it felt as if it would stall out. It was a very dangerous & unsafe ride. FYI – The dealership replaced all 4 fuel injectors to fix