Hey all.
I've got this strange problem with an R32 RB20. It has just an fmic, full exhaust, boost controller, etc. Still running the stock turbo.
Since it was bought, it's always had problems with missfiring under boost at higher rpm. We would change the plugs (Replace with BKR6Es gapped to 0.8mm) and it would drive well for around 1000-2000km, but then start missfiring again! Pull the plugs out, and they look fine, but put some new ones in and it drives well for another 1000-2000km?
I thought I'd try the BKR7Es on this car, as I use them in pretty much every other RB/SR with no issues whatsoever and something strange happened. The car wouldn't rev over 4000rpm. It was as if it was hitting a rev limiter? A really horrible missfire which would actually cause the revs to stop rising. We took the BKR7Es and gapped them all the way down to 0.6mm even and didn't help one bit! Tried taping up his coilpacks with electrical tape, and no help whatsoever.
After that we put another set of BKR6Es in and the car drove fine? But yet again, when 1500km ticked over, the missfiring came back.
Anyone have any ideas?
Thanks
Peter