I did those guages for my car twice and once for burngold on this forum. But never had any problem with it not working. Have you try:
-Make sure ALL the plugs are connected back to the cluster.
-Make sure you DIDN'T take out the needles while installing it.
-Make sure you DIDN'T damage the needles while putting the guages on. (Very delicate)
-Make sure you GROUND the black wire.
-Make sure you CONNECT the red wire to a power source (taillight or headlight fuse in your fuse box, make sure its the right fuse)
-Make sure you DIDN'T leave the guage popping out where the needles are being stuck.
-Make sure ALL wires are connected. (very important, guage wires and cluster plugs)
Last but not least:
-Make sure you turn the knob on the guage controller so that its NOT on dim, turn it on bright.
Further note:
-If all else doesn't seem to work you might have burn a fuse or some kinda electrical problem. Good Luck!