1983 DL 1.6 Sputtering?

[doogie]

Ok, Total noob question here.  Kind of learning as I go along.

 

So I've had my 83' DL 1.6 for several months now.  She only has 95K (original miles/ I'm the second owner)  Had a lot done to her.  Recently she started sputtering when idling at a stop light and when I start her up she is idling too high and sounds like she is back firing when i press on the gas.  

 

Any ideas?  Any advice from those of you who are more knowledgeable than I am is much appreciated.

 

V/r,

Doogie