Some versions of the story require the pork to be raw; other versions say that this happens after dark.
In some versions, a white dog will appear at the time the automobile stalls, and you must feed the pork to the dog to proceed.
This legend has its roots in ancient Hawaiian mythology. According to legend, the Hawaiian volcano goddess Pele and the demigod Kamapua' (a half-man-half-pig) had a turbulent relationship, and the two agreed not to visit each other. If one takes pork over the Pali, the legend goes, one is symbolically taking a piece of Kamapua'a from one side to the other, and it is said that Pele would stop that from happening.