borrow your ignitor for 5 minutes.

[nick-nismo]

alright so im still having no luck i seriously need help now still the same sputter at 5k+ and in 5th gear it comes on at around 4k rpm


so far ive done;
-new plugs bkr7e gapped down
-tried swaping my old coil packs in one at a time x2
-brand new coil pack loom
-grounded coil pack loom directly back to battery
-checked fuel pressure driving around at WOT (follows vacuum and boost accordingly with no pressure drop at time of missfire)
-no vacuum or boost leaks
-injectors have 8000km on them and none are leaking
-afr's seem to be okay.

what do you guys think im missing? it almost sounds like all cylinders are misfiring, its a different feel from when i had a missfire a couple months ago (which was fixed by new yellowjacket coils)

[nick-nismo]

re gapped my plugs to 0.023 and its much better although its still breaking up..

[Dragon Humper]

Same here, gapped down to .025" and seems to be better. Sometimes not. Weird as hell though, ran fine all last year with the yellow jackets and a gap of .035" all the way up to 1.5 bar. Might try new plugs even though they checked out (resistance was bang on). Same two holes, 3 and 4, now only a little brown instead of sooty. Coil harness was fine too, crusty but all connections were good.



Jon.

[nick-nismo]

yeah mine were fine all summer at like 1.4bar with plugs gaped at .032. then out of no where it started breaking up. hmmm i hope its not faulty yellow jackets. maybe ill keep swaping my old ones in 1 at a time