[s-cars] Fixed coils, still stumbling under load

[Kevin C. Quiros]

Well, I fixed the #2 & #4 coils-which were believed to be the root of the
missing under load problem. I got my car back from the mechanic and hit the
highway where there was still a great deal of missing. The missing is no
where near as bad under load now compared to before. Now it's a lot better
but I am still getting the stumbling . The plugs and coils have all been
looked at/checked by my wrench-apparently they are all okay now. Sometimes I
can ride entirely through the load and sometimes I cannot.  Not really sure
where to go from here...