Damn, I just punish ya'll with questions. Anyhow, this is the deal. My friend tried to hook a tach the way he did in his Si, by running the wires to the back of the gauge cluster. Well, he though the "T" stood for Tach. Wrong. Like I told him. It stood for Thermostat. Well, anyhow. After he played with the three screws (+/-/T), he finally agreed with me. Now my Thermo gauge doesn't activate with the car. It just seems dead. Any help?