I disconnected my battery today to reset the 3 codes I got. I forgot to reconnect my MAF sensor harness when I cleaned the sensor yesterday. I reconnected the battery and went to go somewhere. My speedometer wasn't working and I got the PO500 code. I disconnected and reconnected the battery again when I go to where I was going and the speedometer started working again.

Just something weird. I don't think it's a big deal. I just don't like how my mileage is not accurate anymore because the mileage wasn't reading when the speedo wasn't working. This happen to anyone else?