01 LS430 Exhaust Problem

[CDT]

Hello everyone. I have an 01 LS430 and noticed that when I am driving and step on the accelerator "punch it" I am getting a cloud of exhaust in my rear window deck. If I am driving around at normal speeds with normal acceleration there is no problem. Has anyone else experienced this?

[Lexus Owners Club]

Sounds like carbon build up within the engine....maybe worth running an additive in the fuel to clean it up followed by an Italian Tune-up.....that should do the job nicely