u/Bruhsonjedi44

I have a 1991 5.0 mustang that idles ok and sounds kinda rough. When i give it any throttle it misfires. The car shakes pretty bad as well. It moves but barely. I put a new fuel filter in(i was gonna do that anyway) but the car was like this before i put it in. The codes i got when i scanned it were 63, 31, 81, and 85. Im still fairly new to working on cars and the codes kinda go over my head lol, so any help would be appreciated!