Issue: Car (R32 gtr) sometimes misses at idol. Before the engine reaches full operating temp it coughs/farts and jerks when lightly excellerating. Once full operating temp is reached the coughing and jerking is much less but it still misses on idol, back fires a lot, and pings on free rev and while in gear above 6000rpm.
Current Mods: Mines remap, steel wheeled/highflowed standard turbos, trust front pipes, trust cat back, pods, new spark plugs gapped to 8mm, adjustable cam gears, actuators set to 18psi.
Adjustable cam gears were tuned with old spark plugs (6deg advance on intake side and 3.5 retard on exhaust), which caused misfire close to redline but felt strong at low revs. i replaced my old spark plugs with 8mm platinums and issues started to develop after this. Car feels like it has lost low end torque and top end power
To me it seems that at low revs the tune is to rich, and at high revs far to lean. Tuning has been removed from the cam gears which hasnt made a difference.
Any help would be much appreciated.