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  1. Isspro ev2 gauges in obs need help

    1994-1997 General Aftermarket
    Hi I’m new here and I was looking for some help with the installation of my isspro gauges. I have a 95 f250 7.3. I’m having trouble with the installation of the boost and egt isspro gauges, I setup everything according to the instructions, daisy chained the power, ground and dimmer wires between...