I have a 02 L300 that suddenly lost power while driving. I was driving in town about 40 mphand all of the sudden my carstarted losing power and making this bogging sound when you push on the gas. I managed to get the car home but i could only get it to go about 20 mph.The car starts,runs and idles just fine,butruns rough and makes this loud deep bogging sound when i try to rev it above idle.The problem happened suddenly without any indication of a problem andNone of the indicator lights have come on.

 

sounds a lot like a clogged catalytic converter,

 

I have the same problem. No Power, idle fine.
Did replacing the Catalytic Converter solve the problem?

 

This thread is 3 yes THREE years old .... do you think it's still active?