Jump to content
SAU Community

Recommended Posts

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

  • 3 weeks later...
  • Replies 149
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Posted Images

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

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.

  • 1 month later...
  • 7 months later...

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.

  • 2 weeks later...
  • 1 month later...

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.

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

  • 2 weeks later...

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.

  • 2 months later...

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.

Never mind, it was just condensation.. took awhile to get rid of though :blush:

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 :)

  • 3 weeks later...
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.

  • 3 weeks later...

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

04102010926.th.jpg

Different sides & different coil packs:

04102010923.th.jpg

04102010924.th.jpg

04102010925.th.jpg

  • 1 month later...
  • 1 month later...
  • 1 month later...

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

  • 9 months later...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Ok glad you clarified on the frenchy’s options , I was worried about if my oem hoses would fit the new compressor or not if I just bought the bracket/compressor kit ,  didn’t realize they also sold a larger full conversion kit. Hmm may just go oem in that case then to make it easy only because I plan to sell this car to upgrade to a 32 GTR or 34 GTT.
    • Right, here's a video of the basic operation at least.  This is what you can expect day to day when you turn the car on and it boots from standby.  The only thing from a media point of view I haven't gotten working is for it to autoplay plexamp when it turns on from standby (it works from cold boot) but that's more of a plexamp problem as it will autoplay other music players.  Also attached is my one stray cable.  It's part of the screen's wiring adapters but there's just nowhere for it to go in my car.  I've just now done a bit of research and found a matching port on a 2010-2014 head unit with BOSE.  Mine has no BOSE so that's that case pretty much closed I think.  Plugging in the Infiniti AC panel basically did nothing for me, so that's a dead end as well.  Next port of call is to mess with this CANBUS module and see what I can find from it.  I found this resource containing the DBC files for a 2010+ G37 : https://github.com/icecube45/Dash_InfinitiG37/blob/master/InfinitiG37.dbc I'll now have something to go from when I try to extract my CANBUS data so I can see if the HVAC Mode, Fan Speed, Temperature, etc. match and also the gear shifter position.  It's a pretty big assumption that it's just mismatched CAN signals but considering all the devices in the CAN network are talking to each other (AC can be fully adjusted just with no info on screen) it might be a safe one.  I will report back WhatsApp Video 2025-02-26 at 12.49.10.mp4
    • Thanks for that Paul.  Do you think if I posted a picture you'd be able to remember where it went? 
    • Sorry Duncan, I didn't get a notification for the replies.  Thanks for responding!  It's a full Android device, but does allow you to use CarPlay/AA as well.  This is the one I bought from NaviRS on AliExpress: https://www.aliexpress.com/item/1005006368602668.html?spm=a2g0o.order_list.order_list_main.111.59aa1802JDzQ0E - the 2K 8G-256G CAM variant but it seems to have gone up by £170 since I bought it!  My purchase was £307.14.   It's not the fastest thing in the world but performs perfectly adequately.  It stays on standby unless I disconnect the battery and let it power down, then it's just a fairly standard Android bootup time from cold.  The DSP Equaliser is very nice and made the standard stereo system sound pretty decent compared to the stock screen.  Perhaps I can take a video of it when I get a sec. It *allegedly* supports the reverse camera, but I'm yet to get that working.  It has options for reverse cam (a camera unit can be bought separately) or 360 cameras (also bought separately).  To be fair it doesn't seem to detect that the shifter was put into reverse but I'm working on a theory about this as well.  At the moment I'm going without which is a bit annoying considering the car is an absolute canal barge but so far I haven't caused any damage I'll grab a picture of the wire I'm missing later today when I can get outside.  My theory, by the by, is that not only is the head unit different, but the CANBUS network has different signals for the different years.  I think this because I have a spare AC panel from a newer Infiniti G37 (as opposed to my Nissan panel) which wouldn't control anything except the volume when I had it wired up with the stock system.  I'm going to throw it back in and see if the screen will respond to it.  I've just ordered an arduino CANBUS module so I can have a look at the signals going around the car and see if I can spot anything.  I'm thinking if I can work out what it's expecting vs what it's getting I might be able to translate and relay the signal back but so far just a theory anyway. I also found this on my travels, so far the only one that specifically matches my car: https://www.aliexpress.com/item/1005002822934280.html?spm=a2g0s.imconversation.0.0.33433e5fgttovi If you look at the picture of the before, it has the card reader slot, and the picture of the head unit is exactly the same as the one pictured in my original post.  I asked if they sell the cables separately but sadly they won't.  I didn't want to just buy this one because it's a super old Android version and only dual core - likely slow as hell. 
    • As above, you did refill the coolant and burp the system before running it again didn't you?
×
×
  • Create New...