Noel

i was thinking it was the heat range but splitfires advise to go to a colder heatrange hence 6 from std 5

STD Std exhaust std everything except pod, R34SMIC & upped boost a touch but that should not affect idle

Ok so far i have done the following & miss at 5k is gone but i still have a bad miss at idle but mostly when its cold Splitfires New Iridiums 0.8mm New o2 Sensor What else could it be? AFM? CAS? Idle Control Valve? Cheers

Acn Australia....mobile plans starting from $10, CAPS , Optus FREE time, FREE acn-2-acn calls on fixed line plans PM me for more details Noel

Thats cause most people cannot launch...i'd like to see an std auto beat a std manual off the lights if the manual car has a good driver...i highly doubt the auto would have a chance

Sports cars should NOT be available in Automatic in my opinion!!!

Ok i think i may have gotten wrong iridiums originally & when i re-gapped i think i might have damaged the tips so i have a new set on the way which are already 0.8mm & i also have a new NTK o2 sensor on the way as it prob has never been changed (Thanks Kudos Motorsport) so will throw in new sensor & plugs when i receive & hopefully problem is solved.... if not i wont know what the hell it as i would have changed coilpacks, plugs, o2 sensor & would only really leave AFM or CAS in the equation

cheers thanks for all your help!!!

cheers what gap? the std 1.05mm or gap down to 0.8mm?

ahh i see & does make sense plugs done about 2000-3000k max I heard o2 sensor should be changed at 60,000 anyhow? that true? if so im due for one as i just have passed 70,000 regardless i should change plugs yea? THANKS

you have said that they are 0.8mm gap but how old are the plugs? and what sort are they? NGK Iridiums & they are only 3months old you shouldn't have to run the smaller gap with splitfires. thats what i though hence why i am stumped i would also suggest not running too much boost with the stock exhaust. it is a bit restrictive and will keep more heat in the turbo. yea thats why im at 8.5psi & not 10-12psi the reason why it goes away if you fang it is that the plugs are fouling. your o2 sensor may be a bit stuffed and causing you to run rich at low load which is fouling the plugs. then when you fang it the plugs are cleaning themselves. but i get my usual km out of a tank? if o2 sensor was stuffed wouldn't that affect my kms per tank?

but its std ruhning 8.5psi should i have to do that with only those mods?

Ok here is the story & YES i have read all the threads i could find on topic I have a 97 s2 Gts-T Mods are: 8.5psi (Turbotech) R34SMIC Pod EVERYTHING else including exhaust is std When i got car always had a slight pop on idle but never missed through rev range....anyway as i had changed g/box & diff oils, all filters etc since i go car i though id change the plugs as god knows how long they had been in there...got a set of iridiums heat range 6 (originals were 5) & threw them in...straight away it started to hesitate/miss at 4500-5000rpm so i did some research on here & regapped to 0.8mm & it made a hug difference but miss was still there on idle & in cold it would hesitate occasionally but i lived with it...then it started getting worse so i thought time for splitfires whacked them in & presto miss gone on idle & no hestitation...but first time i drove it in colder weather at night its back??? Then I noticed when i give it a good kaning it tends to go away (as it does in the warmer weather) so im starting to think maybe going from a heat range 6 plug from 5 might be the whole problem as it seems when its cold they do not fire properly but when its warmer or after i drive it hard it seems to be fine Maybe i should go back to a heat range 5 & my car is not modded enough to benefit from a heat range 6 plug & infact running worse Any thoughts as im stumped?

same problem...threw in a set of splitfires sat & prob went away over weekend but now its back but only sometimes & notice worse when cold...i have ngk iridium's heat range 6 gapped at 0.8mm splitfires & running 8.5psi with r34 SMIC & pod...everything else is std...what could it be? afm? o2 sensor? i was thinking maybe try going back to heat range 5 plugs as before i swapped to the iridiums it was fine? any thoughts?

I have got hold of this 2nd hand timer http://www.globalrv.net/turbotimer.html It has 3 wires black red & yellow no plugs or harness...what do i connect to what? Cheers Noel