92 ls400.First time started in morning,and driving for 6 or 7 miles,The car has a light throttle stutter.Than It goes away for the rest of the day.Any suggestions? Thanks Michael.

 

Mine has been doing some same thing with increasing frequency. It also always does this off the line at acceleration.

There has been discussions about fixing this problem, so I'll list some of the suggested fixes.

-Flush transmission fluid (use Toyota type IV only)
-change fuel filter
-use injector cleaner
-change spark plugs + wires
-change caps (something to do with spark plugs?)
-go for a major tune up, (valve adjustment, etc)

Hope that helps!