Jump to content
SAU Community

R32 Gtr With Black Smoke/miss Fire

whiteboy01

By whiteboy01,
in Engines & Forced Induction

 Share

Recommended Posts

whiteboy01 Collaborator

whiteboy01

Posted
Posted

Hey guys,

I have owned the GTR for about 2 years now and have blow 2 lots of turbos in that time. Being a poor bastard and liking the stock power I replaced them with stock ones again. That was all fine and dandy makeing about 0.9 Bar boost all day every day. The car is completly stock engine wise. Basic support mods include HKS Intercooler, HKS Exhuast and HKS BOV. Stock ECU, Injectors ect

Now heres my problem. I have been using it as my dayly driver for abit now giving it a fairly easy life putting around in traffic. Now all of a sudden it doesn't like to boost pass 0.6 bar and blows a f**k load of smoke out the back. Missfires and doesn't go very fast. The car still revs to 7.5k, idles fine, builds boost quickly as well. Smokey ilde sometimes.

I have checked the following -

  1. Blocked BOV - Didnt notice and different
  2. Checked all pipping - intercooler hoses and fuel lines - all ok here
  3. Reset ECU - no change
  4. Checked for shity fuel with water in it. Flushed tank - still the same

Going to do a compression test this weekend will report back with what i find, the problem is i have done alot of research and it points to a leaking intercooler pipe. Checked all the piping a million times now and still nothing comes up.

I also can't take it to a machinic because i live in a small rural town full of FORDs and Holdens and the mechs scratch there heads with my car. My last resort will be chucking it in the back or a trailer and taking it to HyperDrive MS.

Cheers, :P

Link to comment
https://www.sau.com.au/forums/topic/249980-r32-gtr-with-black-smokemiss-fire/
Share on other sites
Mike__ Enthusiast

Mike__

Posted
Posted

black smoke is excess fuel

checked AFM's? Mine started to occasional stall whilst on light load. needed cleaning and now all good, better + better throttle response.

Checked plugs / gaps / leads ?? with increased boost the spark can be 'blown' out with a large gap/stuffed plug as boost increases

yeh can imagine very few nissan turbos floating round in gero :P

whiteboy01 Collaborator

whiteboy01

Posted
  • Author
Posted

Yep only r32 GTR in town. Makes it hard sometimes....

New spark plaugs were graped to .08? or .8? one of the two. AFM are a bitch to get to will check tomorrow.

Could it be a piston that is stuffed?

Thanks for the hints.

Mike__ Enthusiast

Mike__

Posted
Posted (edited)

Dont know the gaps of the top of my head, never replaced/regapped mine, do a search

the problem doesnt sound mechanical as you said the car idles fine/normal & builds boost as per normal.

am thinking a boost leak but you've said you already checked all hoses. could be a stuck open bov.

you've dropped 0.3 bar all of a sudden and theres misfiring, spluttering so am thikning theres still 0.9bar worth of fuel going in

Edited by Mike__
whiteboy01 Collaborator

whiteboy01

Posted
  • Author
Posted
Dont know the gaps of the top of my head, never replaced/regapped mine, do a search

the problem doesnt sound mechanical as you said the car idles fine/normal & builds boost as per normal.

am thinking a boost leak but you've said you already checked all hoses. could be a stuck open bov.

you've dropped 0.3 bar all of a sudden and theres misfiring, spluttering so am thikning theres still 0.9bar worth of fuel going in

Just for a update the car is struggling to idle now, blowing black smoke on idle. Car still revs fine but with alot of miss fire.

Compression test will tell whats wrong.

whiteboy01 Collaborator

whiteboy01

Posted
  • Author
Posted
hey white boy, your not the bloke with the blue gtr that i raced a few months back in my white one??

Yer man... had a few goodies since then. Now she is stuffed, hardly idles and blows white and blue smoke now...

Jet 20 Enthusiast

Jet 20

Posted
Posted
Yer man... had a few goodies since then. Now she is stuffed, hardly idles and blows white and blue smoke now...

definently comp test it.

white smoke is unburnt fuel and blue is oil smoke.

almost sounds like a hole in a piston..

Jet 20 Enthusiast

Jet 20

Posted
Posted
Just to correct that,

White smoke is coolant

Black is Petrol

Blue is oil

what ever mate.

EXCESS fuel is black smoke.

UNBURNT fuel from not unuf compression or no spark is white smoke.

water smoke is steam not smoke.

whiteboy01 Collaborator

whiteboy01

Posted
  • Author
Posted
what ever mate.

EXCESS fuel is black smoke.

UNBURNT fuel from not unuf compression or no spark is white smoke.

water smoke is steam not smoke.

So now compression test is next....

If it is a piston that is stuffed is it possible to do a RB30 NA swap over? Any good guids out? I have found the PDF but it skipped alot of things like ECU ect....

Dearlove Collaborator

Dearlove

Posted
Posted

[if it is a piston that is stuffed is it possible to do a RB30 NA swap over? Any good guids out? I have found the PDF but it skipped alot of things like ECU ect....

im thinking of doing an rb30 conversion as well, we'll have to have another drag after, lol

whiteboy01 Collaborator

whiteboy01

Posted
  • Author
Posted
[if it is a piston that is stuffed is it possible to do a RB30 NA swap over? Any good guids out? I have found the PDF but it skipped alot of things like ECU ect....

im thinking of doing an rb30 conversion as well, we'll have to have another drag after, lol

compression test done

  • 1st 140
  • 2nd 140
  • 3rd 150
  • 4th 150
  • 5th 130
  • 6th 130

All rough figures being noob at it doesn't help. Give or take 5PSI. So what does this mean? Everything ok? I'm leaning towards the turbos now. Is there any way to check?

whiteboy01 Collaborator

whiteboy01

Posted
  • Author
Posted
Do a diagnostic search, could easily be an AFM or cas or igniter.

Ok how do i check the AFM? I have unpluged them and notice both times the car nearly stalling but car ran the same. Do i need to clean them? If so what with? I have the stock air box and just a panel filter.

CAS? Crank angle sensor? is that on the front of the engine? Unpluged that and the car didn't start. Pluged it back in and the car was the same.

Fuel. Don't know how i'm spose to check the fuel pressure. I will ask my mech mate tomorrow.

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • MBS206
      Jacks that fit under GTR lips that can reach the subframe?

      By MBS206 · Posted

      You know how your car rolled through a fence in your last jacking escapade? Scissor jacks increase the likely hood of that sort of thing happening immensely!
    • Piggaz
      Jacks that fit under GTR lips that can reach the subframe?

      By Piggaz · Posted

      http://calfinn.com.au/product/1500kg-standard-trolley-jack-cj-2t-c/1500kg-standard-trolley-jack-cj-2t-c   I have this and fits under a S3 33 GTR with no issues. Purchased in 2009 and not one issue. It was $950 back then. Not cheap but something so important isn’t worth cheaping out on.
    • MBS206
      R32 GTST - 600KW+ RB28/CD009 Build

      By MBS206 · Posted

      Just trying to get my head around this. At 5psi of boost, you turn on your wmi pump, and then you're using a 3000cc injector, to allow flow upto the actual engine, where you have your 6x200cc injectors and a 500cc injector. If the above is correct, what advantage are you obtaining by having the 3000cc injector blocking flow, is this just incase a line breaks between that injector and the motor you can stop flow immediately? Or are the 6x200cc and 500cc less injectors and just spray nozzle?
    • f00stx
      Intro/R33 owner

      By f00stx · Posted

      Welcome! New member myself, but I had an R33 back in 2002. Best advice I could give, based on my experience: if you're running the factory turbo, be very conservative with boost. I made the mistake of just fiddling around with the boost controller and cranking the boost for fun, and the end result was my intake pipes popping off frequently from the constant deluge of oil that was being blown into the recirc by the stressed-out turbo, which itself was siphoning oil from the engine and farting it out both sides of its centre bearing (or something to that effect). If I could do it all again, I would have gotten a new turbo and had a tune dialled in professionally and then just left it alone! Funny you mention the metal shavings in the gearbox, as I had the same thing - the probe plug (magnetic drain plug, essentially) would come out caked with shavings. At least it was doing its job. Not sure if that's just sacrificial wear and part of the deal, or if my gearbox was shagged, but I wasn't abusing it. Enjoy the R33 - they're a dying breed, and if they weren't $35k+ on CarSales in Queensland, I might have picked up one of those again, instead of the 370GT I own now (though I'm loving the 370GT, that big 3.7L V6 just hits different).
    • f00stx
      Second time Skyline owner (R33 GTS-T and now a V36 370GT)

      By f00stx · Posted

      Howdy folks. I owned an R33 back in 2002, which was thoroughly beyond my capacity (financially speaking) to maintain/insure, so we parted ways in 2004. Fast forward 21 years (to literally yesterday, in fact) and I'm now the proud owner of a 2007 V36 370GT. I'm happily surprised by how much power the VQ37VHR makes, compared to the RB25DET, considering the latter is turbocharged. I had planned to add a turbo at some point but I'm on the fence about whether I'll even need it (though I do love the sudden onset of extra torque). Any other 370GT owners around the traps, I'd love to hear about your experiences with this car (good and bad).
×
×
  • Create New...