Today I put a new set of Dakota Digital VHX gauges in my camaro. I put all the setting in, all gauges work including the temp. It reads hotter than the engine temp. This engine came out of a 2000 corvette, the thermostat opens at 210, at this point the temp gauge will read 240 to 260. Any help ps. All grounds are good, even ran a ground to the controller from the Neg side of the batt to double check.