Jump to content
SAU Community

Recommended Posts

hey guys,

I seem to be having a strange issue with my R34 GTR, at first I thought it was coil packs so i pulled them out and couldn’t see a problem with them (looked for cracks)

The problem is intermittent and has a couple of problems which I feel are related to something.

Problems:

- Car is stuttering between 3K RMP and 4K, after it hits 4K the car revs smoothly. I can hear the stutter through the pod filters... almost sounds like the BOV is stuttering or something...

- Sometimes when I put the foot down to 100% throttle the Boost, Revs and speed do not change and just sit there...

could it be coil packs or AFM? I haven’t really started looking yet.. I think ill first clean the AFM, anyone got some cleaning tips?

Cheers,

Dom

Link to comment
https://www.sau.com.au/forums/topic/398640-r34-gtr-afm-or-coilpack-issue/
Share on other sites

I had a similar problem which was fuel cut at high revs with black smoke , then eventually became misfire intermitently !

You should take the pods off and spray the AFMs with carbie cleaner , clean pods as well .

Then if problem continues as mine did , replace Coilpacks , i got some genuine Nissan packs for $236 a set , or you can get splitfires , this should help .

Visually looking at the coilpacks does not really say anything , mine looked perfect externally but were stuffed at 65,000 km .

Hope this helps !! :rolleyes:

Don't use carby cleaner on AFMs!

Why not , does carbie cleaner leave a residue ?

K33P UP , i would have a good look at your AFMs , no power after 3k rpm could be a dry soldering joint inside your AFM .

Theres plenty info on this problem on SAU

Edited by NISSAN GTR

thanks guys, ill take a look. if i cant use carby cleaner what else is good to clean the AFM?

i guess if it keep happening after the clean i might buy new AFM first and work my way to coil packs.. sometimes it drives fine for a few days but then plays up for days..

I also have a red ( ! ) in the cluster sometimes and only goes away when the speed goes back down to either below 20kmph or 0.... even if i drive and the light comes on i drop the car into neutral to put the revs back to 1,000 rpm... related maybe? or could that be a problem with ABS? as its the same light as the hand brake

Super cheap auto have a MAF/airflow sensor cleaner spray. Use that to hose out the sensors.

Before you go buying coil packs, I'd suggest pressure testing the intake system from the twin turbo pipe to the intake manifold. If you have a lose clamp or split hose somewhere you'll find it. The miss could be simple over-fueling as a result of an air leak.

You mentioned you could hear the BOV stuttering through your pods? this sounds like what happened to mine and it ended up being the o2 sensors.

This was after I swapped the spark plugs and cleaned the AFM's Still a good idea to clean the AFM's like people already mentioned though.

See my report here:

http://www.skylinesaustralia.com/forums/topic/43095-o2-sensor/page__view__findpost__p__5672340

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

    • For these last 7 years of ownership, I've always had to use a small scissor jack under one of the front tow hooks to raise the front just enough so my low-profile jack fits under to reach my subframe jack point. I'm beginning to get annoyed of always having to do this. Are there any lower low-profile jacks that fit under the gtr lip on a dropped car?
    • Seat of the pants assessment of the new intake: The car is way less "doughy" when hitting the loud pedal, especially off idle when stopped or in traffic, I did use a cheapo lazer thermal thingo to measure the temp around where the pod filter got its air, it was between 55 - 60°C, in saying this the car was shut off and not moving, so the OEM intake pipe was not supplying any fresh air to where the pod was when the car was at least moving A weird bonus was induction noise on the throttle in the cabin increased a bit,  I was worried that I was actually going to lose some of that induction noise I love so much, outside though, when I got the daughter to do a WOT drive by pass for me, the induction noise has increased alot when on the throttle, not quite ITB doort, but well up there I'm extremely happy with the results and have been exploring the country roads in the region  As for house mods: 1.New front fence is up and is awesome, it really upgraded how the joint looks from the street, and the added security is nice 2. Electricians have replace some interior lights, and with more lighting in the garage, a few new motion detecting lights out the front above the garage, front room, and at the front door, which I have already found heaps helpful coming and going, also now has fancy pants CCTV all round the house The only hold point for power though is the solar and batteries due to supply issues, although this will happen over the next few weeks 3. I have done a heap of landscaping out the front and I'm almost ready to do a new small retaining wall with some nice blocks to replace the brick and cemented in rocks around the raised garden beds cemented in river stone "was the fashion at the time" the house was built. I currently have a pallet of retaining wall blocks and 2 bulka bags of 20mm blue metal to replace the wood chip that is in the raised garden beds around the house 4. I now have 3 big raised garden beds for out the back to grow some vegetables, about 70cm high, 200cm long and 100cm wide 5. My 2 compost bins are already pretty full with brown, green and kitchen waste from the landscaping I'vedone so far, but they will probably take a few months to break down, so anything else that gets chopped, trimmed, and kitchen waste will just start filling the base of the raised garden beds to about 30cm before I start throwing 40cm of good compost, and stuff, for the vegetables to grow in, I'll need a few ton of compost and soil, but the local supplier can sent me bulka bags of the stuff Basically the logs, wood chips and a few strategically placed rocks for drainage, will give the beds some good organic materials down low to break down over time, and they will hold moisture during the warmer months to save the water in my big arse water tank if we don't get alot of rain So, all in all, the car and house mods are going well, and I'm really enjoying being retired, I sleep in too 0700 and slowly plod around inside until I feel like actually doing anything, and only work in the yard for as long as want, which has actually been alot over the last few weeks,  although when you look at it, it seems that not a huge amount of work has been done,  until I look at the before I started the work pics Happy days and good times indeed 
    • hahaha yeah. Plan is to get side skirts and probably just rear pods. But going to do them one-by-one. I've got a set that I really like from RHDJapen, but that one isn't shipped to AU. So need to find someone who can get it for me
    • Here's an idea, answer the questions I asked you as they are trying to work out WHY the LSD will be binding up in a straight line.
×
×
  • Create New...