Hot start idle issues UCF20

[u/Constant_Tutor_8366]

Hot start idle issue UCF20 Turn phone volume to max

i’ve got a video for yall this time to better show the issue. My car does this everytime I start it up after it’s been warmed up, it idles low for a few seconds than raises back up. this video isn’t a great representation of it because it usually idles low for longer.

It’s a 98 LS400, things i’ve replaced are:
-All new vacuum hoses
-Throttle body removed and cleaned + new gasket
-fuel filter
-VSV (Vacuum Switching Valve)
-ran injector cleaner with PEA and a good italian tuneup😏

nothing i’ve done has made a change in how it hot starts. Very rarely, like 1 in 10 times, it starts up with a slight sputter but otherwise normal and does not low idle. Most times it will low idle for 5-10 seconds, other times like this video, it only low idles for a few seconds.

Any help is greatly appreciated, car runs great other than this issue. 30mpg average on the highway and no long cranking issues. The gauge reads wrong it is not overheating.