Car stalls shortly after it gets going on 1991 Audi 90

Recently my 5cylinder 1991 Audi 90 has been stalling shortly after I get going. If I push the gas pedal to the floor it runs good until I release the gas pedal. Usually within 5 minutes it starts to run normally and is good until I shut the car off and restart it. Any ideas?

Asked by for the 1991 Audi 90
Some possibilities:

1) Air intake boot-torn
2) Idle stabilizer malfunction
3) Throttle body malfunction