Developed a misfire the other day, pulled my plugs and found a wet plug in cylinder 3 and smelled like gas not oil. Replaced all my plugs and tested spark. Had a strong blue spark on my plugs that I gapped to factory specs, what else could be causing this? I'm leaning towards a failed injector but would like some input if anybody else has run into this. Already replaced my fuel filter and tested rail pressure everything checks out and compression is 165 across all holes