Sir, I have recently purchased a used Lexus with 275,000 miles. Beautiful car, but it seems to be having problems with similar simtoms of a Catlyetic Converter, it is a CA car, but it isn't overheating. It is like I am trying to accelerate with the brake applied. It may be something with the traction control, but when I turn the traction control switch off it gets even worse, I had a hard time just backing it back into the driveway. Please reply.