After ECM reset great power-performance for about 30-minutes

[the_same_mountainbike]

@bing

There are two temp sensors though. One just tells the gauge what the water temp is. The “engine temp sensor” though tells the computer what the engine temperature is though so the computer can set the correct fuel air mixture for the conditions.

True. And perhaps that supports the idea that the coolant is low… leaving both sensors in air.