My car was without being used for 7 months because its clutch was damaged. A week ago, I took it to the mechanic because it could not be started, he moved some relays and it finally started. The problem is that the acceleration is now failing. I was told that it is misconfigured as it was a long time disconnected from the battery. But when the vehicle was scanned, the computer could not be read. I don't know how to do to be able to see the computer because its connector does not show any signal. Can someone advice me please?