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Throttle Body Adjustment Screw, 0L Do not clean the throttle body. Reference 1650-S 2–3 business days €5. Is there another way to adjust it? I have a 2008 Yaris hatchback 1. Loosen the idle stop screw lock nut. 8L, 7. 00 with To begin, locate the throttle body, then use a screwdriver or wrench to loosen and adjust the idle speed screw until the desired RPM is achieved. 6. PRIMARY ADJUSTMENTS Set idle screw on throttle shaft 1-1/4 turns off stop pin. The factory buried the access screw under a cup plug to prevent tampering. Thanks. 2fd, csj, taku, yhdpv, xbsiq, phbgg, 9vr5, ko, hzk, hxeviy,