Hello, I need help modifying the temperature threshold for activating the electric fan on my Bosch ME7.4.4 ECU in a Peugeot 206 1.6 TU5JP4 engine.

The ECU is originally programmed from the factory to turn on the electric fan at 98°C. I would like to modify this threshold to 90°C.

I extracted the EPROM, Flash, and microprocessor files from the ECU using the Ktag tool. I have experience reading and rewriting them. I also have a basic test bench with the Chinese PD60 simulator, where I can simulate the complete ECU power-up with a CKP signal generator. With the DiagZone Pro software scanner, I can evaluate the electric fan's power-up and temperature by applying heat directly to the temperature sensor.

files ecu Bosch ME7.4.4