
but seriously search for \"idle dip\", many posts and suggestions, mine use to do it to, its common for early nb's
http://forum.miata.net/vb/showthread.ph ... t=idle+dip
http://forum.miata.net/vb/showthread.ph ... t=idle+dip
http://forum.miata.net/vb/showthread.ph ... t=idle+dip
http://forum.miata.net/vb/showthread.ph ... t=idle+dip