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. Use a flat screwdriver to turn the idle speed screw to the right to increase the idle speed, or turn the screw to the left to decrease the idle speed. Start the engine and let it idle. If the idle is too low, turn the screw to the right a quarter turn at a time until the idle is at the desired speed. wIcx.

how do i adjust idle speed