Hello Daz3,
It supposed to run, when it puts enabled = true the item must be from the beginning in the game. The mod was enabled? How was the item?
something like that?
{
type = "recipe",
name = "speed-module",
enabled = true,
ingredients =
{
{"advanced-circuit", 5},
{"electronic-circuit", 5}
},
energy_required = 15,
result = "speed-module"
},