Jump to content
SAU Community

Recommended Posts

hi guys,

im new to all this and i just bought a stock r 34 gtt and i'm finding im dumping fuel.

some days its fine, other days i find that WOT between 4500 and 7000 rpm i get stutter and loss of power as if there's a flat spot through my range.

also my fuel efficence is 300 kms per tank of average driving on pulp. i had my air flow metre fixed and that helped a little bit but hasn't fixed the problem.

i had a dino run, if this means anything, and am making 152.5 km at the wheels, but my linear graph shows im running at 10.5. after the air flow metre fixed its now at 11.5 apperently it should be at 12.7?

does anyone know a good mec that i can go to i live in melbourne?

all the help i can get would be much appreceated.

thats so much dave.

Link to comment
https://www.sau.com.au/forums/topic/151083-help-stock-34-gtt-issues/
Share on other sites

Sounds like your coil packs to me as well.

Stock boost the ECU is normally aiming at around 11:1 AFR with the boost turned up a bit, the cells in the ROM aim for around 9.8:1 AFR

No way in hell would the car on it's own make 12.7:1 unless boost was up over a Bar..but by then you would have hit the max voltage on the AFM and the engine will cut-out

  • 2 weeks later...

when the car stutters does it...

a) sound like a WRX?

b) the TCS OFF + SLIP + and engine check light all come on?

if yes, coil packs. Very, very common problem with the R34's. A few options to fix.

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

    • Resizing injectors in Nistune can be done a couple of ways, and there are a couple of ways that you can make a mess of it. The tuner needs to be really aware of the effects of whichever approach he uses (either K, or TIM). They are both easy enough to "get the injector size right" to run the engine. But little details like old start enrichment and hot start are affected differently, depending on which boxes you check.
    • Pretty safe to say almost everyone that has tuned their own car has experienced this issue. The difference being that we have our laptop in the car and when it happens, it's literally 10 seconds of tuning to sort it.  Would you be happy to plug in your laptop and sort this yourself? It is a very simple process and there is no risk of harming your engine (if you are worried about that). 
    • Yeah thats the next step now, either they wil or i will take out for a drive to work and go straight their after work and see is we get the same issues 🤞  thought i try my luck here too, never know someone else might have had the same issue but thanks for the reply 
    • Basically your tuner needs to drive it for the 30 min (or whatever) to create the same conditions then check the ECU settings and sensors at that time. They may not be excited to because that takes them 30 min rather than just opening the bonnet and seeing the problem straight away.... Hot start is generally not as tricky as cold start, but there would be a table for fuel enrichment vs coolant temp as a starting point
    • Yeah, they all cant say anything for sure as everything is working fine . Said unable to find an issue untill it stops again. Could mist likely be CAS wiring or IAS valve issue but again not 100%
×
×
  • Create New...