I have a big problem losing power & revving too high. My car is automatic '93 Integra and has 150,000 miles on it. Lately, when I lightly push the gas after starting the engine, the car will move smooth sometimes but other times, the engine feels like it's choking or would rev-up to 5000rpm without going anywhere. Is this a transmission problem? Something I can check? Or something that's ready to go out!!! Please help. I want to keep this car but lately I'm losing too much power...