[98camrycincy]

I had similar problem on a different model car. It would only get up to about 30 MPH and it was very labored at that; like someone had stuffed a potato up the tailpipe. Turned out my catalytic converter had failed. My mechanic said I had gotten a bad tank of gas that may have had some lead in it and that fused the mesh inside the converter when it got hot. Once it cooled down, the mesh would not be fused and so the car could breath. He changed the converter and the problem went away. Good luck.