hello fellow audi bros...
i recently bought my 02 1.8 with 93k miles from a used dealer..
i did not do a tune up right away until about 2k miles later..
i started gettin a check engine light
got it scanned & it read as a misfire ...shortly after that my car did not start
so i changed my coils spark plugs & oil & sort of fixed it
it ran good for about 400 miles then got the same check engine light
now i took it to get scanned again & they said i have a misfire in all 4 cyl.
now when its cold (las vegas cold, bout 30F weather) it does not start
& IF it does it shakes & makes loud noises until it idles normal & then its ok
what can this be??

 

codes codes codes???