I have four apexi el gauges (boost,egt,oil pressure, and fuel pressure) for some reason they do not perform the boot up sequence when the car is started and none of the gauge needles do anything at all. I have verified power ground and constant is all accurate. They do light up as well as flicker the warning lights. However they show nothing. Could the system meter failed?

Troy

 

Sounds like it to me, if you want to sell them let me know.