Hi all, I was wondering if anyone can help me.
I have an r33 GTS-T. Mods are FMIC, Pod, 3" Cat Back, 11.5lb boost, fuel pump, HKS BOV.
It started to have the slightest miss occasionally on idle and if you just feathered the accelerator it missed slightly for just a second as the revs built.
I then swapped my iridiums for copper heat range 6 gap set to .7. (to get over my "blowing out the spark" problem)
Now the idle miss is much worse than before especially when cold.
It also extends much further into the rev range.
At high revs or high load it is fine. It screams to redline smooth as.
I have tried everything other than changing plugs.
I was thinking to change gap to .8, next to change heat range to 5.
Any ideas would be greatly appreciated as it is very annoying.
Cheers.
