Hello!
This is my first post so be gentle.
So i believe I'm experiencing a misfire based on the following information. BTW I'm running a S2 rb25.
The problem being that I'm only experiencing it at random cruise/light throttle position moments. i had parked the car over winter and was having some trouble before i put it away but decided i would deal with it in spring. i have pulled the plugs and checked the condition, not to bad but could use a change(buying them on Friday). when i pulled the plugs around a month ago i moved cyl 6 to 1 and the other 4 were randomly placed as they had negligible differences. it seemed to alleviate the problem, but now that i have put around 1500Km on the issue is starting again. here's whats happening. I drive around 20km to work one way and after the car hits NOT, randomly, it will bog while cruising on the highway. the afr's are all over the place(when it happens) and i can clearly hear the exhaust tone change to a rough burp or boging sound, as if one cylinder dropped off. if i let the throttle off and get back on it nothing changes but when i give it some extra fuel it usually takes a second or two to stop and return to normal. today this happened three times, yesterday once, and the day before not at all. assuming its cylinder 6 again does anyone have an idea what could be causing the rapid deterioration of the spark plug? could it be bad coil wires, bad fuel injectors, bad regulator. any real input on direction would be worth it.
Yes i have new coils, ngk bcp7 iridiums, running greedy intake, stock injectors, 255 pump, etc. fueling does not seem to be the problem as it runs well until this happens, i personally checked and cleaned all six injectors and put them back in the opposite order to see if that would help.
Basically i dont want to burn another set of plugs trying to figure out WTF. thanks in advance for whatever advice you all may provide