high idle

[smf402]

i have a 2002 supercharged 402, and all of a sudden the idle is high and jumpy. changed the plugs with no result, is there a way to reset the idle by pulling a fuse?

 

[Hib Halverson]

There are all kinds of reasons why idle speed can become high and unstable.

A common cause of idle problems like you cite is a vacuum leak somewhere downstream of the throttle body.

There is no fuse to pull to correct an idle speed and stability problem.