Does the temp look good in the dashboard gauge (uses a different sensor), if you're not overheating and the temp shows ok on the gauge, then you just need to replace the coolant sensor for the CPU.
It's toward the front of the intake manifold, behind the alternator, and threads into the intake from the top-down.
My oil line fix
My 100k stopped odometer fix
Brace for impact, I'm in a "modifying mood". Massive thread count inbound.