My Integra recently started feeling like a wheel bearing or cv joint was going out when on the freeway. We had plans on taking it to the shop but then suddenly today as I was shifting into second it felt like I shifted into fourth. I managed to slowly get it up to freeway speed but it would slow down uphill when fully pressing the accelerator which has never been a problem in the past. Once I came to a stop I had to rev the engine up to about 3k to get it to take off and keep my rpms up each time I shifted or lose speed and have to start over again. It does leak oil but I could not see any oil on the end of the plug wires. Does this sound like a plug issue or a fuel filter issue? I felt the exhaust and it is pushing air out rapidly at high rpms so I dont think that it is the catalytic converter. When I first begin to rev the engine it kind of sputters then at 3k rpm it regains its power and will accelerate.