having gauge problems please help

[sean lalley]

i have the centech wire harness and everthing has been working fine on my last road trip i noticed that the gauges were acting funny they were all dropping off like they had no power i thought that i had lost oil presure but all of the gauges were doing the same thing and i had just put gas in it
can someone who has had this problem please send me in the right direction before i take this thing to townsend next week
thanks in advance

 

[Viperwolf1]

Loss of power to IVR or bad IVR. Not a bad ground.

 

[sean lalley]

Loss of power to IVR or bad IVR. Not a bad ground.

what is that and where is that

 

[Viperwolf1]

IVR is the instrument voltage regulator. It's a small box with several wires attached to the back of the gauge cluster. The 3 gauges are powered by it.