Not likely any problem with the coil pack then. The wires could be ready for replacement. The plugs are supposed to last 100,000 miles. I swapped them more often, but that was because I was running nitrous
on the car for two years and then the supercharger. The plugs were only $2 each (no need for the expensive plugs by the way when you get ready, the stock plugs are fine, even with an engine on forced induction). With the forced induction I wanted to check the plugs each spring, and since I had them out already and they were so cheap it was just as easy to swap in new plugs. But the plugs I pulled with about 30,000 hard miles on them (daily driving and weekend racing) were good enough that I could have gone another 30,000 on them easily.