Jump to content
SAU Community

Recommended Posts

Help me please. I have a R33 and for a while i was having trouble with it spluttering and idleing bad mainly after putting it under load. So i changed the coil packs that made no difference so i decided to change the fuel filter. When i took the filter off i tipped the fuel out and it was filthy and brown. So i put a bottle on the line and turned the reds on to see what it was like coming from the tank and it was clean. After changing the fuel filter and cleaning the AFM the car ran fine untill today. I boosted it up it made a pop when i backed off it started to splutter and idle bad when trying to drive it it just wanted to come on to boost and kept fluttering ( i have a bov atmosphere/plumbback) i pulled over to check it then everything went back to normal its now driving fine again and boosting smoothly.

The car is pretty much stock apart from exhaust, FMIC and BOV

Any ideas???

Hmmm... When you said pop that definately sounded like a intercooler hose coming off. Maybe you popped another vacuum hose somewhere. Do you hear a whistling or sucking?

Black smoke when it happened?

Car is perfectly fine now?

i checked all the vacume lines and intercooler pipes and double checked they were tight everything was fine.

There was no sucking or whistling noises or anything and it did blow a heap of black smoke once before when i was trying to keep the revs up and i could smell petrol. This was before i did the coil packs and fuel filter.

Its not fine i thought it was untill yesterday. it sometimes hunts for idle and ive noticed the thing that brings it on is when its been bought under light boost after the turbo flutters the car wants to stall then hunts a bit it dosnt do it all the time. Could it be the BOV?

Cheers

if the bov is venting to atmosphere thats more than likely your problem, the way they work means that the car is getting unmetered air (air not measured by the afm) and therefore idles and runs poorly, needs a retune to fix it. if it plumbs back then you have a vacuum leak somewhere

Best bet to find such a crack would be to soap the piping or hosing to see a leak. Do you run a tee or boost cont with a aftermarket gauge? If so u should notice the pai dropping once u reach max psi.

Other option could be fuel pump shat itself, if it smells like fuel afterward

Best bet to find such a crack would be to soap the piping or hosing to see a leak. Do you run a tee or boost cont with a aftermarket gauge? If so u should notice the pai dropping once u reach max psi.

Other option could be fuel pump shat itself, if it smells like fuel afterward

This wert work. Under vacuum you aren't going to get bubbles. He needs to pressurise the intake then soak the stuff.

Failing fuel pump will make the car hard to start and will cause it to pop on boost and potentially even in low medium load without boost.

Edited by SargeRX8

This wert work. Under vacuum you aren't going to get bubbles. He needs to pressurise the intake then soak the stuff.

Failing fuel pump will make the car hard to start and will cause it to pop on boost and potentially even in low medium load without boost.

Vacuum in the manifold. the pipes have a small amount of pressure in them

Lastnight I took the BOV of and replaced it with the gfb stealth as i noticed the one that was on it was open 100% on both sides. I have the gfb one running 100% plumback.

Anyways took the car for a drive gave it heaps and it drove fine held boost and did everything it should.

Coming home from work this arvo about half hour into the drive just cruising didnt boost it up it started to splutter.

it also feels like the car sometimes cuts out completly then comes back to life splutering and carrying on.

the car stalled i fired it up it then drove normal for the last 5min of the trip home

What was the filter on the pump like ?

Have u drained fuel to check quality of it ?

Also check all fuel lines make sure there all good not split or leaking or sucking water

What is the timing set at ?

The filter on the pump was a little dirty it was light brown. i havnt drained the fuel but when i had the filter off i pumped some into a bottle and it was clean.

ok thanks ill go over all the fuel lines.

not to sure about the timming as far as i know its never been touched

The filter on the pump was a little dirty it was light brown. i havnt drained the fuel but when i had the filter off i pumped some into a bottle and it was clean.

ok thanks ill go over all the fuel lines.

not to sure about the timming as far as i know its never been touched

The only reason I say check timing is that if ur cad I faulty ur timing may possibly be off if u get the chance hook up to a consult

Hey mate,

I remember reading somewhere recently that BOVs venting to atmosphere might cause stalling issues for skylines. I can't find the exact site where I read it, but here are some links for extra info on how others have solved it. Hope it helps!

http://forums.gtrcanada.com/gts-tech/9424-bov-causing-stalling.html

http://www.alltrac.net/tuning/bovfaq.html

http://www.nissansilvia.com/forums/index.php?showtopic=101975

http://www.xspeed.com.au/manuals/FG-ADM-R33.pdf

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

    • Good morning all, Bit of a random question but figured I’d finally throw it out after wondering for a long while. Before I start, I'm hoping to do this purely out of personal preference. I think it would look better at night, and don't mind at all spending a few hours and dollars to get it done. I've copied this from a non-Skyline specific forum, so I apologize for the explanation of our headlight switch setup that we all know. Here we go: Zero lights (switch off) Parking lights (switch position 1) being a rectangular marker on the outside of the housing, my low beam being the projector in the centre (position 2), and a high beam triggered by my turn signal stalk. Most North American cars I’ve owned of this era have power to the amber corner (turning indicator) light as part of the first switch (parking lights). I’d love to have these amber corners receive power when the headlights and parking lights are on (headlight switch), yet still blink when using the turn signal which is of course a separate switch. Hopefully I’ve explained my question correctly. Is anyone aware of a way in which I might be able to achieve this? Thanks in advance
    • My heads are cathedral port! It's likely possible, but I don't want to add any extra moving parts (I know they don't move) between the heads, manifolds, etc. It will also affect how injectors/fuel rails etc sit and I don't really know if it would change how the FAST manifold goes/sits/fits. I have the LS6 steam pipes already as I have a very late LS1 block so it should be fine. I couldn't find anyone who had ever actually used one for this purpose, it seems 100% of people grind the water pump. The thermal spacers are 12mm and are half way to the cost of the newer water pump anyhow... so if it comes to that I suppose I'd rather buy a new pump. The bearing in the pump I do have is a little.. clunky, but it hasn't done that much time and I never noticed it when the car was together in the past few years, so..
    • The bushing has failed, not all that uncommon for a car of this age.  Any mechanic should be able to push in a new bushing for you, or you can probably buy the entire lower control arm, complete with bushes.
    • Could you not use "thermal" spacers to give the clearance, like the ones I used between the blower and head? That raised the manifold height by around 10-15mm Albeit the ones I used were for cathedral ports, but I assume they have similar for rectangular ports????
    • Thanks Paul I reached out to Autotainment but they no longer work on JDM cars as the guy who used to do the work moved on and is no longer doing that kind of work. I am talking with Level Up Audio though.
×
×
  • Create New...