randy mullis

Thanks guys for all the info. We did switch out the entire throttle body assemblies including the tps and magnetic clutch. The only thing I know to do now is the ecm. My question about doing that is; does there exist a method of reflashing or reprogramming an existing ecm from one car to another? I could buy a new one but like I stated before, that costs about $1400 for the part with NO chance of returning it. I really appreciate everyone's help so far; I hope someone has the answer....... THANKS!!!!!!!!!!!!

I have an automotive shop and dealership. My 2001 gs300 with 52000 miles has given me no trouble until 3 weeks ago. While going up a hill I felt a slight pop in the accelerator pedal. The pedal went almost all the way to the floor (past 75%) before the car had any power. I pulled over and checked everything. I got back in the car and cranked it back up. The vsc and cel were still on, but I did have full accelertor pedal. This was fine for about 2 miles until I tried to merge onto the interstate and the same thing happened again. I almost became a hood ornament on a Mack truck. I pulled and repeated the same procedure and again full pedal returned. I got the car back to my shop and pulled up the following codes: p0753, p0758, p0763, p1126, p1656. We have replaced the throttle body assemble twice thinking that might be the problem. We have also traced all the wires from the ecu to the throttle body looking for an open or short. This car has never been in an accident. Please help. If someone has experienced this same problem please let me know. Your help will be greatly appreciated. THANKS!!!!!!