Issues with other fuel system components, or components of the ignition and engine management systems can also cause similar symptoms. (yourmechanic.com)
The part is made from rigid plastic, it isn't too big, and the leak rate specification is comparable to other fuel system components. (sealtick.com)
In some cases, the delayed throttle response you're talking about is caused by a faulty electronic throttle control or excessive carbon deposits on fuel system components like the throttle body, fuel injectors and mass air flow sensor. (yourmechanic.com)