This is the second time this has happend. I have a 1997 Jetta GT Manual with 72000 Miles. The repair shop said they couldnt find anything worng last time except oil in the air intake or something like that. I will be driving fine and then it will start to sputter. It will start reving up and down below 1000 and then will just stall. It will not turn back over and if it does it will just die again. Oh my horn wont work while this is happening but my radio does. I dont know much about cars so please keep advice simple.

It happens in all weather and I just had a checkup about 1000 Miles ago...Help..Why does my car just die on me?