Jabiru 3.3 number 2 cylinder head temp readings are erratic. I have checked the connection at D10 and also CHT ring. All othr cylinders ok. Can you please help ?
One thing you can do to see if it's real or in the probe or wiring is switch the physical CHT with another cylinder. If it stays on the same spot on the screen, then you need to take a look at the probe/wiring. If it moves to a new spot on the screen, then the temperature is actually changing.