Dude, thank you so much! No wonder, that’s probably what’s making the sensor go off. It’s the corrosion particles interfering with the reading. I reset the ECU last night and drove it around some. I even floored it until 90 MPH two times and nothing came on. I’m gonna assume it’s that built up rust and not the thermostat or sensor. I’m gonna flush the cooling system and then if the code comes back again, then I’ll change it.
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