dominque

Hi,I have a 2000 and a 2001 gs 300 lexus.The 2001 has a high idle when start up in the morning and after sitting for a while.The idle is high until the engine is warm.It don't matter if its 100 degress outside.The 2000 cranks up fine with just right idle at all times.So I switched the throttlebody from the 2001 to the 2000 car but still got the same results.Could the computer be bad or need reprogramming on the 2001 gs 300 with the high idle?