6nz in an FLD120. Replaced temp sensor on top of thermostat housing and gauge sensor. Overtemp buzzer will come on sporadically, sometimes at 150, sometimes 175. Engine isn't hot. Haven't been able to figure out why buzzer and light is coming on. Found what I think to be another temp sensor on right side at the top rear of the head above the exhaust manifold. Tried unhooking and hooking back up. I'm 75% sure this is the issue, but haven't been able to find out exactly what this sensor is for, or a part number. Any advice?