Hey guys, first I'd like to apologize, I'm sure this is something that comes up a lot. Here is what I've done:
Driving home from the beach today I got a CeL, had it scanned it pulls up P0303. Looking at Cylinder 3, the Spark Plug and Wire look Fine, even Great. So I did the Coilpack test, and got nothing. It even looks great.....except for some corrosion below the Coilpack, which is coating a good deal of stuff below the Coilpack (It's a yellow-white powdery corrosion.)
Checked the Gas Cap, and The Air Filter too.
Should I just replace the spark plug/wire anyway? (All of them?)