I just recently had my car tuned up, it has 114,000 miles, heres the problem...just started doing this, after it shifts out (auto) and gets into OD when it lugs somewhat, it starts missing and almost like dieseling on, shift it back into 3rd it quits (it does it at low rpm only) or when you take off it will do it....any suggestions?? running like crap, hope its not the opti and if it is, how do i know for sure?? thanks in advance!

 

ttt

 

maybe check your fuel filter, also since they just did a tune up it is probly a burnt wire. Take a realy good look at all the wires when it is dark out, Also check your coil wire make sure it is on good (it took me atleast 3 tries to my coil wire on all the way.