Hey guys,
I just fitted brand new NGK Iridiums to my 1993 RB25DET. The car has only a cat back exhaust, BOV and a pod filter (stock ecu/boost).
I had the new plugs fitted I thought it missed from dodgy plugs and when the old ones were pulled out they looked pretty average so I had the NGKs fitted.
After doing this the car still misses when it comes on boost or under full load. The guy who fitted the plugs also adjusted my idle rpm as he thought it idled too high, but this was only because the car was freezing cold. I presume this is done by adjusting the timing?
Could this have played a part in the car still missing with fresh plugs?
Cheers!
Matt