If you pull the carpet back there's a tube on the floor that the gas pedal bar runs in with nylon bushes check it's not rusted up, when they rust it pinches the bar and seizes up, undo the two bolts, clean and reassemble with a smear of grease, don't use wd40 or spray oils they swell the nylon bushes and make it worse, I drove 200 miles to a show with a shoe lace tied between the gas pedal and window winder so I could pull the pedal back 😄