Hello, I have a 2003 Toyota Matrix AWD Automatic. It started being a little sluggish on hills about 2 weeks ago. It seemed ok until yesterday when I was returning home on a 3 hr trip. Everytime going up a hill it was taking longer to shift and the engine was working hard, but the car could not keep up the speed. I could not drive on the highway. So I stopped on the way home and got the catalytic converter replaced and it didnt make a difference, so when I got home I had the fuel pump and filter replaced. Also replaced the spark plugs. Nothing had seemed to help. Any ideas?