1985 vw Jetta 75,100 original miles

Study pictures. The doors have a few dings as does the front fender, and the rear lower quarter. Starts and drives. But stalls and idles rough. Not sure how to work on this type of injection. I bought this at estate auction thinking it would be a easy fix. New battery. glue on paint where door bump strips where removed.no rust holes. Good low mileage car to fix up. If you know how to tinker with Bosch jetronics. Must be picked up in East Earl pa.