lude's gas/engine temp gauges NOT WORKING

hey guys, I have a 92 prelude (that of course has the mid-dash gauges for engine temp, and gas level.) WELL! THEY DONT WORK! I'm going Mad trying to find the problem and solution. Any help would be great. thanx

-todd-

have you pulled it out before? is everything plugged in in the back. I haven't had that problem yet. Even with the dimmer switch they don't light up or anything?