Jump to content
SAU Community

Nistune And Stock Ecu Emmisions Drama R32 Gtr

chris1600dat
 Share

Recommended Posts

chris1600dat Explorer

chris1600dat

Posted
Posted

Morning skyliners,

After some advice. I have an r32 gtr bought from Vic and looking to engineer it here in nsw.

I was asked to get an emmisions test as it is an r33 rb26.

With the nistune ecu and a 3.5in Zorst it was running 3x over the legal limit for emmisons (stock engine, factory injectors AFM 17psi boost)

I thought replacing the nistune with an r32 gtr stock ecu would run a factory tune. Emmisons was 10x over

Any one got any ideas. I am thinking put the nistune back in and get it dyno tuned back to a stock or more factory tune which will make it closer to the legal limits? Also getting a better cat.

Thanks in advance. I got a quote from a dyno tuner he said 3-4k including exhaust mods. Seems a bit exxy

Badgaz Experienced

Badgaz

Posted
Posted

you could lean on the tune a bit better and take the idle and cruise mixtures closer to 14.7...this will be easier to do with nistune and a good tuner....the stock ecu would do this on closed loop which can make it variable depending on how good your o2 sensors are.

3-4k is way over the top...... where are you located? happy to help. My tuner could re-adjust your cruise and idle mixtures on a road tune for $250.

Dose Pipe Sutututu Grand Master

Dose Pipe Sutututu

Posted
Posted

You will need a factory cat too, I find with Nistune the closed loop is very lazy. I usually disable it completely and run it in open loop..

Easiest way to pass an emissions test, stock cat & E85

Dose Pipe Sutututu Grand Master

Dose Pipe Sutututu

Posted
Posted

Run heat range 5 plugs and mix 5 litres of E85 with 20 litres of 98.

It will pass with flying colours.

DO NOT BOOST IT :)

you have no choice, they control your car you don't control it

sleptema Proficient

sleptema

Posted
Posted

I'd agree with above, just get it retuned, dial the boost way back, fix the afrs. But it is a good opportunity to do an e85 conversion.. :)

If your o2 sensors are shot, or the cat is aftermarket, or you have larger injectors, the stock ECU will be absolutely useless. Probably why you had the 10x emissions.

GTScotT Grand Master

GTScotT

Posted
Posted

you have no choice, they control your car you don't control it

They don't boost it. I used the said method with a friends DE+T and it was said to be better than most econo cars with its result.

Ben C34 Grand Master

Ben C34

Posted
Posted (edited)

You really need a wide band to really know what's happening.

. not sure what functionality the trial version of nistune has.

Edit.

John beat me to it.

Apparently any consult cable should work,but Nistune can't guarantee it will.

Edited by Ben C34

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

    • hoodedreeper
      Chris' Toyota Mark ii JZX110

      By hoodedreeper · Posted

      Initially I thought having a pair of Recaro seats would be a big bonus, it turns out these do get a little uncomfortable on long journeys (my fault, not the seat). I had a look through the GSM Performance website at reclining seats and booked an appointment to visit their show room. I got the Recaro Sportster CS for the R34 from here, was very happy with the service received so of course a re-visit was in order. Unfortunately the two Corbeau seats I had chosen aren't on display but they had 4 other options available. Two seats dug into my back, one dug into my legs and the other was perfect. I also found out that Recaro seats use a larger bolt pattern so some adaption was required. Luckily GSM offer some universal adaptors that should solve this problem. I searched the interwebs for price comparisons and Corbeau themselves were the cheapest at £300 cheaper (for the pair). I asked GSM if they could price match, unfortunately they couldn't. I later received an email saying Corbeau would honour them the same discount, but the purchase was already made. I did however order the brackets from GSM, both arrived on the same day. I started with the passenger side seat, knowing this was going to be a little trial and error. There are 3 mounting holes at the front and 2 at the rear on these JURAN Racing seat rails.  With the adaptor brackets mounted, the allen cap bolts started to push into the seat, NOT GOOD!  The rear mounting holes lined up but there were issues at the front. The holes were 1/2 hole out, so the brackets got a tickle with the drill to modify the holes. The supplied bolts weren't going to be long enough and a spacer was needed to stop the adaptor bars from bending. A local fasteners company supplied be with some nylon spacers and longer bolts (M8x30, although these will be replaced with 35mm long shortly) A before and after I pre-drilled the front bracket before making a start on the driver's seat to save some time. And in no time at all that was in the car too. The all black seats have transformed the interior and these are MUCH more comfortable. The only downside with the new Corbeau seats is I sit a little higher, but I'll happily accept that over discomfort. The Youtube video can be found here: https://www.youtube.com/watch?v=wPyttKPktXA
    • oHBoy.
      2001 R34DE

      By oHBoy. · Posted

      All 3 I guess. The car came with the JASI Aero 4 door Type R Full Kit unpainted so this was one thing at the top of my list to complete then I noticed there were body panels parts for this kit so i picked them up along with some black mesh to fill in the front bumper and front side air vents. car is at a paint and body shop atm completing this work. Next I will be addressing the internal bells and whistles, great summer project I can do with the kids.  full interior removal - ,boys car sound deadening - pads and spray ,boys stereo, sound, lighting - Big 3, GTT or bigger alternator ,kids head lining - dye black add star lighting mod ,daughter. That's it for the next 5-6 months. I have some motor maintenance  work i have to plan out. oil filter relocation, gaskets, mounts. beyond that, mind is starting to turn over if i can use a DET intake plenum, block off turbo ports & pipe in a air intake.      
    • oHBoy.
      Starter motor replacment teeth count.

      By oHBoy. · Posted

      roller coaster of a ride. Alarm system was removed & main harness was repaired where possible. still no fix just random successful starts. moved on to the replacing the ignition switch and relay. well all this troubleshooting & repair has been going on, the car is at a paint and body shop being pushed around. Ive been going down there on odd days after work to get it sorted.     
    • fatz
      Beers and skylines Fatz style

      By fatz · Posted

      5th November if you want to come out for a spin wakfield
    • jtha7
      Strange issue RB25DET wont start

      By jtha7 · Posted

      PROBLEM WAS BROKEN COOLANT SENSOR!!! Replaced with a new one and its running mint.
×
×
  • Create New...