diff --git a/technic/machines/other/injector.lua b/technic/machines/other/injector.lua
index eb63987..36c2592 100644
--- a/technic/machines/other/injector.lua
+++ b/technic/machines/other/injector.lua
@@ -97,12 +97,11 @@ minetest.register_abm({
 	interval = 1,
 	chance = 1,
 	action = function(pos, node, active_object_count, active_object_count_wider)
-	local pos1={}
-	pos1.x = pos.x
-	pos1.y = pos.y-1
-	pos1.z = pos.z
-	local meta=minetest.env:get_meta(pos1) 
-		if meta:get_int("tubelike")==1 then inject_items (pos) end
+		local pos1 = vector.add(pos, vector.new(0, -1, 0))
+		local node1 = minetest.get_node(pos1) 
+		if minetest.get_item_group(node1.name, "tubedevice") > 0 then
+			inject_items(pos)
+		end
 	end,
 })
 
diff --git a/technic/machines/register/common.lua b/technic/machines/register/common.lua
index 9e847c4..0e59d0e 100644
--- a/technic/machines/register/common.lua
+++ b/technic/machines/register/common.lua
@@ -101,8 +101,8 @@ function technic.handle_machine_pipeworks(pos, tube_upgrade, send_function)
 	if node.param2 == 0 then pos1.x = pos1.x + 1  x_velocity =  1 end
 
 	local output_tube_connected = false
-	local meta1 = minetest.get_meta(pos1) 
-	if meta1:get_int("tubelike") == 1 then
+	local node1 = minetest.get_node(pos1) 
+	if minetest.get_item_group(node1.name, "tubedevice") > 0 then
 		output_tube_connected = true
 	end
 	tube_time = meta:get_int("tube_time")