About 2 months ago I got an 89 golf, German spec. I changed the oil, spark plugs and wires and battery. My car runs extremely rough when cold and dies or tries to die when cold even after driving for a little bit. Also, my gas mileage has been horrible. Any ideas?

 

could be air filter maybe

 

Check the ignition coil...

 

buy some diagnostic tool for you ,then you can do the diagnose work yourself...
there're kinds of diagnostic scanners in ebay,you can have a look,or you can just buy in a eshop likes eobd2.com......

 

I changed the oil, spark plugs and wires and battery. My car runs extremely rough when cold and dies or tries to die when cold even after driving for a little bit. Also, my gas mileage has been horrible. Any ideas..

 

I would streak (run naked) around my neighborhood and probably break through the house of my elementary school love.<3 while still nude.