Hi Scotty,
I have a question regarding my 96 Lexus ls400 my girlfriend drove it into a flooded street and we had to push it out of the water and get it towed home. Next day I get It started (took a few cranks) and it was working fine for a day almost like nothing happened, now The rpms keep jumping from 2-3 thousand rpms and I’m not sure what’s wrong with it. Didn’t look like there was water in the oil or transmission oil.
Thank you

those are ALL electronic, odds are they got wet and all bets are off. BUT, i would remove the computers and air dry them with a hair dryer and dry all electronic connections and pray