Hello Friends of the Forum, I have a Ford Fiesta 2007, suddenly it has lost strength and emits a strange sound in the engine, I have decided to scan to detect the problem and he throws the P1639 code, I have cheked some publications and refers to the damaged ECU, if anyone knows if they have arrangement or it is something simpler I will gratefully thank you for help.
Hello friend, if it tells you that the ECU is damaged or corrupted as it can also be called, first of all it disassembles and leads them to reset it to erase the codes that are sending you, before mounting it checks that the connectors cables of it are not games or sulfatics since this could be creating a short and not send the right signal to the coil to send the appropriate spark at the head of the pistons. If when placing it again it remains the same then you must replace it with a new one, remember that these are electronic components that make a machine with millimeter precision and a person no matter how right it is not going to be able to repair it to its original or optimal state.
Greetings and I hope this information can guide you in something.