Every parts (compressor, evaporator, sensors etc ) are OEM from scrapyard. I made all connections using Erwin Online wiring diagrams. But i'am not sure if ECU has suitable hardware inside ? While reading parameters, like aircon pressure, or evaporator temp, its always 5100. Sensors are ok, connections i've checked 3 times, ECU coding has option: "No OR manual aircondition". Any advice ?