I already asked this question a few weeks ago, but I'm afraid that I may not have been as clear in my question as I should have been. So here it goes again:

Spark plugs 1 and 2 are attached to the ignition wires (the ignition wire set). 3 and 4 are attached to something different - ignition coils.

Should I change just the wire set (for 1 and 2) or both the wire set and both coils (i.e. for 1 through 4)?

Note - I've already changed the plugs (about two weeks ago).


Also, and this may sound like a stupid question, but does the '02 S40 have a distributor?

 

No it does not have the Dist.
I would change the coils and the wires.

 

Thanks for the advice.