I spoke to soom. Problem did not go away. When testing pin 8 with the code reader today, I still get 2 blinks which indicates a problem with the ECT sensor.

The ECT tested fine. 250 ohms at 85 C and 1200 ohms at 25 C. I cleaned the connctors and pins.

Does anyone have a wiring diagram and let me know what is conncted between ECU and ECT sensor? Does anyone know what triggers a ECT sensor fault. Does the ECU compare the ECT sensor with another component to determine if the ECT sensor is good?