How to Adjust the Idle on a Toyota Rav4 – The Toyota Rav4 has a completely computer-controlled carburation system that prevents the idle from being adjusted manually. There are, however, some things you can do to increase idle speed and improve the performance of your vehicle. The idle speed control (ISC) is responsible for the operation of the carburetor and meters the amount of fuel that is allowed through the system. The problem is often a sticky or gummed-up speed-control valve. Cleaning the ISC valve will greatly increase any loss in rpm’s and get your Rav 4 running more efficiently.
Tools Used, Tools, Open-end wrench, Metric socket wrench set, Screwdriver, Towel or old cloth, Throttle body cleaner, Old toothbrush
Adjust the Idle