What causes your Lexus ES300 to have low idle?

Low idle in a Lexus ES300 can be caused by several factors, including a dirty or faulty throttle body, a malfunctioning idle air control valve, or vacuum leaks in the intake system. Additionally, problems with the fuel system, such as a clogged fuel filter or failing fuel pump, can affect engine performance and idle stability. Regular maintenance and prompt diagnosis of any warning signs can help resolve these issues.