Originally Posted by zmanzbo
.....Looks like I will be just swapping #5 with #2 tonight....
As I understand it, swapping wire #2 with wire #5 is NOT
the solution to the problem - It is just a means of ascertaining the root of the problem.
I believe 43sqd advised as he did so as to help you ascertain whether indeed
wire #5 was faulty and causing the missfire at cylinder #5.
IF on swapping wire #5 with wire #2 then erasing the existing codes and then having the codes read afresh you obtain a code P0302 (Missfire cylinder 2) you will have established beyond reasonable doubt that it is that particular wire (previously at #5) that is now causing the missfire at cylinder 2.
THEN you must simply purchase ONE wire from the dealer and replace it with the old faulty one.