dayno Posted June 29, 2009 Share Posted June 29, 2009 i had the missfire in high revs up around 6000rpm but only in third i have a high flo turbo running 15psi with an apexi power fc so changed the plugs and made the gap a bit smaller, goes well in third but does it a bit around 5 in fourth should i silicone the coilpacks or jus change the gap some more?? cheers Link to comment https://www.sau.com.au/forums/topic/119403-how-to-fix-missfire-problem/page/7/#findComment-4686491 Share on other sites More sharing options...
r32na Posted July 15, 2009 Share Posted July 15, 2009 is this the same for non turbo/non boosted cars? ive got abit of a misfire Link to comment https://www.sau.com.au/forums/topic/119403-how-to-fix-missfire-problem/page/7/#findComment-4716013 Share on other sites More sharing options...
flyz33 Posted July 16, 2009 Share Posted July 16, 2009 Firstly great DIY guys... I have a r34 gtr and its having similar issues as some of the ones stated in earlier posts, under WOT the car would feel like its hitting limiter at about 5.5k-6k RPM. I have just noticed this problem ever since it has become colder... I'm keen on trying this out over the weekend as a quick fix till I can source some splitfires. I plan to silicon then tape for extra measure. Although my question is, when a coil pack 'fails' what tends to fail within the unit? Cheers Link to comment https://www.sau.com.au/forums/topic/119403-how-to-fix-missfire-problem/page/7/#findComment-4718284 Share on other sites More sharing options...
cainer33 Posted July 18, 2009 Share Posted July 18, 2009 I have an r32, it had a bad misfire at 1.1mm gapped plugs (which i put it after i bought it, a mini service) the ones I pulled out were 0.8mm and the misfire was still there but not as apparent. With 1.1mm it misfired from as soon as the PSI started going positive. Anyway, $400 later and some JJR coilpacks are in and its smooth as silk. Don't bother with half assed fixes, just bite the bullet and pay the money, its well worth it. Link to comment https://www.sau.com.au/forums/topic/119403-how-to-fix-missfire-problem/page/7/#findComment-4721931 Share on other sites More sharing options...
ZOKU Posted August 26, 2009 Share Posted August 26, 2009 I love these kinds of fixes. my 200,000k RB20 runs 1.1mm gapped plug and 18~19psi with no probs. change the plugs every 5000k's. thanks for the thread! Link to comment https://www.sau.com.au/forums/topic/119403-how-to-fix-missfire-problem/page/7/#findComment-4790803 Share on other sites More sharing options...
Duchie Posted April 12, 2010 Share Posted April 12, 2010 Hey i got an r33 GTS, non turbo of course and i had the miss-fire issue too but it was only on idle once the car had warmed up. I did the tape fix to test if it was the source of the problem and it ran as smooth as a baby's arse. Went to bunnings and did the silicone thing today and they'll be back in tomorrow after school. Thanx and yet again SAU to the rescue for $10. Link to comment https://www.sau.com.au/forums/topic/119403-how-to-fix-missfire-problem/page/7/#findComment-5176521 Share on other sites More sharing options...
brandon_gtr Posted April 20, 2010 Share Posted April 20, 2010 I'll be trying this on the brothers GTS-T.... Having the same problem... Link to comment https://www.sau.com.au/forums/topic/119403-how-to-fix-missfire-problem/page/7/#findComment-5191214 Share on other sites More sharing options...
rorz Posted June 15, 2010 Share Posted June 15, 2010 Hey sorry to bring up an old thread but is that stuff still called Selleys 401? I went looking for it at Bunnings, Placemakers, and Mitre 10 and noone have it. I noticed the original post of this was in 2006 so it could have changed name? Also i live in NZ which may have something to do with it. Link to comment https://www.sau.com.au/forums/topic/119403-how-to-fix-missfire-problem/page/7/#findComment-5293399 Share on other sites More sharing options...
dl_unlimited Posted June 17, 2010 Share Posted June 17, 2010 Hey sorry to bring up an old thread but is that stuff still called Selleys 401? I went looking for it at Bunnings, Placemakers, and Mitre 10 and noone have it. I noticed the original post of this was in 2006 so it could have changed name? Also i live in NZ which may have something to do with it. This is the stuff mate Selleys Silicone 401 RTV Link to comment https://www.sau.com.au/forums/topic/119403-how-to-fix-missfire-problem/page/7/#findComment-5297259 Share on other sites More sharing options...
Rolls Posted June 26, 2010 Share Posted June 26, 2010 This fix is hit and miss, getting splitfires is your best bet if it doesn't work. Also having a rich tune and poor sparkplugs compounds the problem, making sure you aren't running lower than 11.5:1 will help dramatically as well. Link to comment https://www.sau.com.au/forums/topic/119403-how-to-fix-missfire-problem/page/7/#findComment-5314152 Share on other sites More sharing options...
SiNNO Posted August 30, 2010 Share Posted August 30, 2010 Hey sorry for digging up an old thread. I did this fix today with the silicon, after putting everything back and fired it up, I'm now getting white smoke.. What could be the problem? I'm positive it's not condensation. Link to comment https://www.sau.com.au/forums/topic/119403-how-to-fix-missfire-problem/page/7/#findComment-5422399 Share on other sites More sharing options...
SiNNO Posted August 30, 2010 Share Posted August 30, 2010 Never mind, it was just condensation.. took awhile to get rid of though This fix worked a treat, had a minor flatspot problem that was fixed along with the misfire! The missus did most the work, took everything apart and applied the silicon on the coil packs. Had to take off the intake manifold as it blocks the coil packs, such a pain Link to comment https://www.sau.com.au/forums/topic/119403-how-to-fix-missfire-problem/page/7/#findComment-5422586 Share on other sites More sharing options...
DrewBoy33 Posted September 15, 2010 Share Posted September 15, 2010 i had a misfire issue as well and i tired everything , but the fix for my car was the fuel filter..i went down to repco and got myself a new one , changed it over and i was running normal again.once the old fuel filter was out , i blew through it and blackish petrol came out of it , so a bad batch of fuel along the way caused it. I had same issue, misfiring under acceleration and a rough idol. I replaced the filter and the problem seems to be be fixed. Had previously checked spark plugs which were fine. Thought the fuel filter would be a cheaper/easier fix and so far seems all good. Link to comment https://www.sau.com.au/forums/topic/119403-how-to-fix-missfire-problem/page/7/#findComment-5448630 Share on other sites More sharing options...
sumoftheparts Posted October 4, 2010 Share Posted October 4, 2010 I did this today. My coilpacks visually look fine, but my head tells a different story. There are visible "lines" on the head at around the level of the joints of the coilpacks' plastic moulding. My theory is that this has been caused by the spark jumping from the coilpacks to the head. Over years this has led to the head pitting and causing the lines you can see in the photo. I'd be very interested to see if anyone else notices this on their head. Circled: Pitting in the head Different sides & different coil packs: Link to comment https://www.sau.com.au/forums/topic/119403-how-to-fix-missfire-problem/page/7/#findComment-5478758 Share on other sites More sharing options...
taurismo33 Posted November 16, 2010 Share Posted November 16, 2010 An alternative to using electrical tape to fix the coilpacks , is paint them in clear nail polish, its withstands the heat without cracking . Link to comment https://www.sau.com.au/forums/topic/119403-how-to-fix-missfire-problem/page/7/#findComment-5552113 Share on other sites More sharing options...
cannabiscorpse Posted January 7, 2011 Share Posted January 7, 2011 (edited) Hey guys, just wondering if you also silicon the rubber that goes over the plug? sorry for the newbie question.. Edited January 7, 2011 by cannabiscorpse Link to comment https://www.sau.com.au/forums/topic/119403-how-to-fix-missfire-problem/page/7/#findComment-5615408 Share on other sites More sharing options...
chocco Posted January 11, 2011 Share Posted January 11, 2011 For those who are using silicone leave the coil packs in the metal harness and just fill the gap around the coilpack - harness. Link to comment https://www.sau.com.au/forums/topic/119403-how-to-fix-missfire-problem/page/7/#findComment-5619731 Share on other sites More sharing options...
SkyBlu2000 Posted February 24, 2011 Share Posted February 24, 2011 hey guys i got a question about my skyline lol, well just like urs its miss firing and the engine lights on n ive been everywhere with quotes and have six different diagnosis' can u let me know which u think it is cause when i hit around 60k's the whle engine shakes maybe a transmission problem or coils but either way its gunna cost me unless you guys can help?? i dont really know that much about engines but i love my 34 so yea help needed Thanks From Erin <3 Link to comment https://www.sau.com.au/forums/topic/119403-how-to-fix-missfire-problem/page/7/#findComment-5686247 Share on other sites More sharing options...
EVL-R33 Posted December 8, 2011 Share Posted December 8, 2011 Is this method still ideal for R34s? Link to comment https://www.sau.com.au/forums/topic/119403-how-to-fix-missfire-problem/page/7/#findComment-6145185 Share on other sites More sharing options...
gumflapper Posted December 15, 2011 Share Posted December 15, 2011 had this problem for a while... under WOT the car spitting and stuttering purchased some splitfires problem solved Link to comment https://www.sau.com.au/forums/topic/119403-how-to-fix-missfire-problem/page/7/#findComment-6153519 Share on other sites More sharing options...
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