It's not a regular boost gauge. See what happens is when u give it power it self tests, goes to -30 then back to 0 to make sure everything is zeroed out. when u crank it and u lose that power it wants to start the self test again, if it gets boost while it's doing it it throws the gauge off. hence why i need a constant ignition one. I was thinking a toggle switch but i'd rather find a different wire and not run a toggle switch, or a relay. I know there has to be a wire somewhere
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