I was getting a misfire code for cylinder 4. Cylinder 4’s plug was by far the worst of all. I’m thinking these plugs might be original based on how little electrode is left on all of them. Just ticked over 90K.




Cylinder 4

The rest pretty much all look like this one.

 

Yeah the build-up on #4 is suspect. If it were me, I’d change plugs and HT leads and check the plugs again after a few thousand miles, and hopefully your fault code stays away.

 

For sure, just changed all the plugs. Putting off doing the wires until I have more time, but they're sitting here ready to go when that time comes.