Hey for some reason after i installed my boost guage and turbo timer, my cluster lights just dont work, but the cluster itself still does, does anyone know what it could be? i took off both guages and it is still not working. is there a relay that could have been blown? i checked all the fuses and they were fine. i need some help.

 

Turn your light on lol jk.
The boost gauge on my friend's Supra is in the center part where the radio/ac controls/etc goes, well his lighter, and little coin holder and stuff was taken out, so we ghetto-fit the LED, or what ever light from the cigarette lighter and put it behind his gauge now it lights up GREEN like the rest of the OEM dash gauges, it looks awesome .
Good luck, check your wires maybe..

 

i took the guages out, when i turn the lights on, the lights outside the car work, and the other instruments in the center get really dark,

 

Well I see your car is a '93 meaning you don't have EL gauges, if you turn your lights during the day, your dash is going to DIM, so everything is going to look darker...
The pictures you've probably seen of a 4th gen that looks like it has it's lights turned on during the day and the RPM, and MPH gauge is green is because those are EL gauges.

 

at night, nothing is visible

 

sounds like short. where did you splice into for your guage wires and timer?

 

small lights fuse under the hood

 

yes check the lights fuse under the hood..this just happend to me..its like a 20 amp i think....

 

i did check all the fuses and they are fine, could it be a relay???