ok, i have a 93 lx. When i step on the gas sometimes i will get next to no exceleration. The RPM's increase at a snails pace, and the car will start to shake (more violently as you try to accelerate). I change gears to keep the RPM's low around 2 grand but the problem remains in any gear. I also get a bang noise from the passengers side every now and then if I try to accelerate to hard. I had origanaly thought it could be a clogged cat, but now i'm just not sure if it's exhaust, engine, or even a tranny problem.