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Hello fellow Skyline owners! I’ve had my car in the garage for 6 months now, during winter time. Before I put it off I had the car remapped. During the mapping session the car suffered from intermittent missfires on higher rpm. Then when I was done and started the car to drive home the car only ran on 5 cylinders. We did some fault searching, narrowed it down to cylinder 3. Then all of sudden after we swaped coilpack 3 & 1 around, it worked again. The coilpacks used at the time were Splitfires (5 years old). One of the things I wanted to do was to upgrade the ignition system, so I did. I Installed VR38 smart coils. Also swapped out the sparkplugs (ngk bcp7res) gapped at 0.7mm. This is when I found out that all of my old sparkplugs were very black and a bit wet. I originally thought this was a tuning or fuel realated issue since it was affecting all the of the cylinders. This week I started her up. after about 40 minutes of total running (idle) I removed to check my new plugs.. All the sparkplugs have what looks like fresh engine oil on them. The threads are clean, just on the base and half around the center electrode, just as the previous ones too had. Earlier sparkplugs i’ve had replaced has never looked like this and I find it odd that it’s like this on all the plugs. Do you guys have any ideas what would cause all the cylinders to have oil in them all of sudden? 🤔 Will upload a picture so you can see too. The car is a R33 RB25DET Car has uprated turbo,injectors,maf,ebc.. Running a apexi power fc. Unopend engine. Done about 90000km
