To adjust the idle speed on a fuel-injected car, you'll need to locate the idle air control valve (IAC) and the idle speed adjustment screw. The IAC valve controls the amount of air entering the engine when the throttle is closed, while the idle speed adjustment screw determines the idle speed.
If you need to adjust the idle speed on your Toyota Tacoma, the first thing you need to do is find the idle speed screw. The idle speed screw is located on the side of the throttle body. Once you find the idle speed screw, you will need to turn it clockwise to increase the idle speed or counterclockwise to decrease the idle speed.To adjust the idle speed, turn the screw clockwise to increase the idle speed or counterclockwise to decrease it. To adjust the idle mixture, turn the screw clockwise to lean out the mixture or counterclockwise to richen it. How Do I Adjust My Idle Rpm? If your car's engine is idling too high, it could be a sign of a serious problem. What RPM Should a Car Idle at? Wondering what the ideal idle speed is for your car engine? We've got you covered with this guide to help keep your engine running smoothly. By Magnus Sellén. Updated: January 7, 2023. Most people pay no attention to the car RPMs until there's something wrong. .