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Adjusting an accelerator cable means setting the right amount of free play — usually 1-3 mm — so the throttle closes fully and responds without delay.
For the full breakdown, see our best Universal Accelerator Cable guide.
A throttle cable that’s too tight can hold the throttle open and push your idle up; one that’s too loose makes the pedal feel dead. Here’s how to adjust accelerator cable so it opens cleanly and returns fully: set the free play to the manufacturer’s spec, lock it, and verify the throttle snaps shut. The job usually takes about five minutes with two wrenches, and it only applies to cars with a mechanical cable — not drive-by-wire.
What Does The Adjustment Actually Change?
The adjustment controls how much the cable can move before the throttle starts to open. That small amount of slack is called free play, and