1998 Lexus GS300 Engine problems

Purchased a 98 gs300 six months ago and my vsc, abs, brake light and check engine warning gauges came up and will not go away. Did some research and found out the brake master cylinder, throttle position sensor and throttle position actuator were the problems. With these few items gone bad my car produces little to no power during acceleration. The car barely gets up to 45 mph with acceleration pedal all the way down to the floor. With the vsc gone bad there is an alarm that stretches to uncomfortable hearing...

Tl* the contact owns a 1998 lexus gs300. The contact stated that when driving between 30-40 mph, the vehicle would begin to loose power and stall sporadically with the illumination of the check engine warning light. The manufacturer was not contacted. The dealer was notified of the failure, but the vehicle was not repaired. The failure mileage was 190,000 and the current mileage is 192,380. Updated 02/09/12*lj the dealer found the throttle position sensor was out of specification and there was an open circuit. Updated 02/27/12

The "vsc" and the "vsc off" lights both turn on at the same time, and the engine suddenly come to idle and the car slowly come to stop right in the middle of the freeway when I am driving at 65 mph on the freeway. *Nm

Rod bearing knock first heard at 3300 miles, dealer refused to repair stateing that problem can not be duplicated. I have recording of the noise and affidavits.