My r33 S2 RB25DET has a rough idle after about 10 mins of driving when warmed up. It goes from like 200 RPM to 1000 RPM and some times stalls
Ive tried to fix it by cleaning the AFM buying new coil packs and spark plugs.
Car is stock apart from pod filter and front mount inter cooler
also have a boost leak getting about 4psI could this be linked to the idle by any chance