Ok so some time ago i got a new set of splitfires, which about 6 months later started to die, sent back got a full replacement. The new ones have been on for 2 months, and every now and then, i get a strange misfire, on like one cylinder, a pop for a split second and then all fine.
The car is as per sig, running 16 psi boost and BKR6EYA plugs gapped at .8 mm. I have a cam gear installed and new timming belt etc.
I was wondering if there is anything i should be checking in the car, like earthing to coils or something, surley there must be something i can do.
The missfire usually occurs in the morning, and is gone by the afternoon, and uauslly mid rpm not top rpm.