Just replaced my catalyctic converter, = O2 sensor, temp2 sensor, and temperature sending unit. I ran it until the fan = kicked on and these are my observations: First, the temperature gage gave = the appearance that the van was warming up quicker than usual. = Second. while feeling the radiator to determine thermostat opening the dash = temp. gage read higher than it used to. Lastly, by the time the fan kicked = on, the needle was just under the line indicating the upper end of the operating = temperature range. I have both the lower temp fan switch and = thermostat in. The O2 sensor I replaced had been unplugged for the = better part of a year. Is it normal for a new sending unit to read higher = thsn the old one? Is there any way to 'calibrate' the new one? Is = it possible one of the new sensors is causing a lean condition resulting in = higher temperatures? During normal operation the needle used to hover = right around the LED, a little higher in stop & go driving, a little lower = on the highway. My test drive today (85 degrees) the needle hovered about = halfway between the LED and the hot end of the temperature range. Any = thoughts from the list?