Jump to content
SAU Community

Recommended Posts

Hey guys i started to notice recently when i drive flat out and at high revs the car stuttered/hesitated a little i thought it was the sparks so i change the shitty ones that were in there to nice new NGK iridiums :/ it didnt fix it per say but the problems changed now it feels like im hitting the rev limiter at 4-4.5K for a moment then goes fine again, but i havent been able to get on the freeway to really give it a go yet. Im thinking it might be the packs but i wanted to get some input before i blow a wad on splitfires, also could it be the fuel pump? Maybe ill change the fuel filter and see how that goes first

Link to comment
https://www.sau.com.au/forums/topic/318677-stutteringhesitant-at-high-revs/
Share on other sites

coilpacks.

easy way to check is take out all coilpacks and give them a good clean. look carefully for hairline crack. usually looks like white powdery cracks. if you see then that means your coilpacks are gone. if you can do a DIY repair on them with some clean silicone sealant.

i did that to my R34 and it handled 240rwkw daily for over a year and still going strong.

coilpacks.

easy way to check is take out all coilpacks and give them a good clean. look carefully for hairline crack. usually looks like white powdery cracks. if you see then that means your coilpacks are gone. if you can do a DIY repair on them with some clean silicone sealant.

i did that to my R34 and it handled 240rwkw daily for over a year and still going strong.

Hmmm that might make sense, I noticed on the 4th sparky that it was the only one covered in a small amount of white powder, I was wondering what it was but I was in a bit of a rush to get them back in so I didn't take much notice. Do you think that's the problem?....splitfires time?

well it could be that or anything really. thats just the first and easiest thing to check. and if faulty cheapest to fix. try the DIY method out first or borrow somones coil packs. then if that fixes the problem you can make you mind if you should get splitfires or not.

well it could be that or anything really. thats just the first and easiest thing to check. and if faulty cheapest to fix. try the DIY method out first or borrow somones coil packs. then if that fixes the problem you can make you mind if you should get splitfires or not.

Just did the whole tape DYI fix, not sure, it seems like it reduced the symptom but I'm also thinking it could be placebo effect. I didn't see any cracks or anything on my packs though....

take it off and clean it. Get the MAF sensor cleaner from Bursons etc. it works a treat!

When you say you did the Tape DIY fix, wht did you tape? If it was the coils themselves then maybe do the whole loom as well, I did the loom on mine and it fixed all stuttering issues I had, after cleaning the MAF's and doing the solder joints on them too. Oh and make sure your spark plugs are gapped down to .8mm

take it off and clean it. Get the MAF sensor cleaner from Bursons etc. it works a treat!

When you say you did the Tape DIY fix, wht did you tape? If it was the coils themselves then maybe do the whole loom as well, I did the loom on mine and it fixed all stuttering issues I had, after cleaning the MAF's and doing the solder joints on them too. Oh and make sure your spark plugs are gapped down to .8mm

mmm might have to have a look into that, I only taped up the actual packs and not the rubber part if thats what you mean. I was thinking about the gap. I thought it was 1.1 for stock boost?

nooo not the packs themselves, you don't need to tape them up. Pull the loom off (the wires with all the plugs) and check it for any splits, (mine had several and could see bare wire on a couple) then tape the whole thing up with some decent electrical tape (nitto FTW) then you should be right, if that's your problem

nooo not the packs themselves, you don't need to tape them up. Pull the loom off (the wires with all the plugs) and check it for any splits, (mine had several and could see bare wire on a couple) then tape the whole thing up with some decent electrical tape (nitto FTW) then you should be right, if that's your problem

I just followed this guide

yes, but dit you have any cracks in the epoxy or not? If no then you wasted your time. Try doing the loom as well, you'll probably find it has a split somewhere, otherwise I rekon it's dry solder joints in the MAF Sensor. Fix it by resoldering the joints Tutorial Here

As far as I know James is still running the standard boost solenoid so boost cut is out. I still place my bet on coilpacks.

Kirs is right standard boost :(, gonna order new splitfires I think

Have you checked your Loom and done the MAF joint with fresh solder yet? That's a LOT cheaper than new Splitfires. If it's not your coils then when you get your new ones you will have the same problem.

The above 2 fixes will take bugger all time to do and will cost you all of $5 for tape and solder a little more if you need to buy a soldering iron too but still a lot less than the Splitfires will sting you :)

I had this problem after a quick squirt on the track.

Checked everything, sparks, coils, intercooler piping etc.

Turned out to be the Vac hose on the Fuel Pressure Regulator, felt kinda stupid once I noticed the little hose dangling.

Chances are yours isn't this, but yeah.

Good luck.

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

    • But first....while I was there, I also swapped across the centre console box for the other style where the AV inputs don't intrude into the (very limited !) space.  Part# was 96926-4GA0A, 284H3-4GA0B, 284H3-4GA0A. (I've already swapped the top 12v socket for a USB bulkhead in this pic, it fit the hole without modification:) Basically to do the console you need to remove the DS and PS side console trim (they slide up and back, held in by clips only) Then remove the back half of the console top trim with the cupholders, pops up, all clips again but be careful at the front as it is pretty flimsy. Then slide the shifter boot down, remove the spring clip, loose it forever somewhere in the car the pull the shift knob off. Remove the tiny plastic piece on DS near "P" and use something thin and long (most screwdrivers won't fit) to push down the interlock and put the shifter down in D for space. There is one screw at the front, then the shifter surround and ashtray lift up. There are 3 or 4 plugs underneath and it is off. Next is the rear cover of the centre console; you need to open the console lid, pop off the trim covering the lid hinge and undo the 2rd screw from the driver's side (the rest all need to come out later so you can do them all now and remove the lid) Then the rear cover unclips (6 clips), start at the top with a trim tool pulling backwards. Once it is off there are 2 screws facing rearwards to remove (need a short phillips for these) and you are done with the rear of the console. There are 4 plugs at the A/V box to unclip Then there are 2 screws at the front of the console, and 2 clips (pull up and back) and the console will come out.
    • So, a bit of a side trip, but one that might be interesting for people with JDM cars and japanese head units. I know @Pac previously posted about a carplay/android auto adapter he installed which used the AUX input, and @V35_Paul put in one of the Tesla style units that replace both screens. The option I went with was a Lsait LLT-YF-VER5.87_2 (https://www.alibaba.com/product-detail/Lsailt-8GB-Android-Multimedia-Interface-for_1601187633672.html). Price was $1,150 for a single unit although they are much cheaper if you are willing to buy 2....$857ea. Make you you get the version 2 not version 1, it is faster and has a better UI - this is the manufacturer listing: http://www.lsailt.com/product/348.html. BTW if you've never bought from Alibaba before, don't be concerned....these guys can't stay in business unless they are responsive, ship fast etc, they were excellent (probably faster shipping than most local places) So, this was my task for a lazy Sat afternoon....looks complex but was all done in a few hours (it probably helps that I had some of it apart before so it was a bit familiar). I also decided to add a HD USB drive recorded at the same time and the unit also supports an aftermarket reverse cam (if you don't want to retain factory) and also AV in and HDMI out It looks much worse than it is, in fact in was genuinely all plug and play (no custom wiring at all). This video was pretty good (skipped a few steps), unfortunately they are an Aussie seller but no longer sell this unit (I guess Carplay/AA adapters are easier to install and much cheaper) https://www.youtube.com/watch?v=T5hJfYOB8Dg
    • That still isn't a lot to go on. I don't have a Y50 Fuga Head Unit wiring diagram. I can say that a lot of nissans of that age shared head unit plugs, so if you are in Australia something like this would probably help: https://aerpro.com/app091# You plug that into the car loom, then either plug the head unit ISO into that (if it has ISO), or you buy and ISO adapter harness that you wire in. Bit of stuffing around, but once you have ISO its easy to change things in future.
    • It is a kunfine Android screen . Does anyone know the wirering diagram of the fuga ??
    • just an update to this, poor man pays twice  Tried sanding down the pulleys but it didnt do the trick. Chucked another second hand alternator in the na car which I got for free off my mate and its fixed the squelling. Must have been unlucky with the bearings.    As for my turbo car, I managed to pick up a cwc rb alternator conversion bracket + LS alternator for 250 off marketplace, looked to be in really good nick. Installed it , started the car and its not charging the battery.... ( Im not good with auto elec stuff so im not sure if this was all I needed to do but I verified such by using a multimeter on the battery when the engine was running and I was only getting 12.2v )   I had to modify the earth strap for the new LS alternator , factory earth strap was a 10mm bolt which did not fit the bolt on the LS alternator which was double the size so I cut it off , went to repco bought some ring terminals that fit, crimped it onto the old earth strap and bolted it up to the alternator , started the car and same issue. Ran like shit and was reading 12.2 at the battery.  For a "plug and play" advertised kit thats not very plug and play but alas.  My question is , am I missing something ? Ive been reading that some people recommend upgrading the stock 80 amp alternator fuse to a 140 amp but I dont see how that would stop the alternator charging especially at idle not under load.  Regardless ive pulled it out and am going to get it bench tested by an auto elec tomorrow but it would be handy to know if ive missed something silly or have done something wrong.   
×
×
  • Create New...