chris1600dat Posted May 29, 2014 Share Posted May 29, 2014 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 Link to comment https://www.sau.com.au/forums/topic/443794-nistune-and-stock-ecu-emmisions-drama-r32-gtr/ Share on other sites More sharing options...
Badgaz Posted May 29, 2014 Share Posted May 29, 2014 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. Link to comment https://www.sau.com.au/forums/topic/443794-nistune-and-stock-ecu-emmisions-drama-r32-gtr/#findComment-7297880 Share on other sites More sharing options...
Dose Pipe Sutututu Posted May 29, 2014 Share Posted May 29, 2014 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 Link to comment https://www.sau.com.au/forums/topic/443794-nistune-and-stock-ecu-emmisions-drama-r32-gtr/#findComment-7297940 Share on other sites More sharing options...
GTSBoy Posted May 29, 2014 Share Posted May 29, 2014 What emissions are over? CO? HC? NOx? Your solution will depend heavily on which of these. 1 Link to comment https://www.sau.com.au/forums/topic/443794-nistune-and-stock-ecu-emmisions-drama-r32-gtr/#findComment-7297946 Share on other sites More sharing options...
GTScotT Posted May 30, 2014 Share Posted May 30, 2014 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 Link to comment https://www.sau.com.au/forums/topic/443794-nistune-and-stock-ecu-emmisions-drama-r32-gtr/#findComment-7297969 Share on other sites More sharing options...
Dose Pipe Sutututu Posted May 30, 2014 Share Posted May 30, 2014 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 Link to comment https://www.sau.com.au/forums/topic/443794-nistune-and-stock-ecu-emmisions-drama-r32-gtr/#findComment-7297973 Share on other sites More sharing options...
sleptema Posted May 30, 2014 Share Posted May 30, 2014 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. Link to comment https://www.sau.com.au/forums/topic/443794-nistune-and-stock-ecu-emmisions-drama-r32-gtr/#findComment-7297976 Share on other sites More sharing options...
GTScotT Posted May 30, 2014 Share Posted May 30, 2014 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. Link to comment https://www.sau.com.au/forums/topic/443794-nistune-and-stock-ecu-emmisions-drama-r32-gtr/#findComment-7297999 Share on other sites More sharing options...
gtr jet Posted May 30, 2014 Share Posted May 30, 2014 I'd just wack a standard cat in it and tune it on E85. You'll have better emissions than a Prius then. 1 Link to comment https://www.sau.com.au/forums/topic/443794-nistune-and-stock-ecu-emmisions-drama-r32-gtr/#findComment-7298005 Share on other sites More sharing options...
chris1600dat Posted May 30, 2014 Author Share Posted May 30, 2014 Ok thanks guys I think that's the bet. Get a stock cat. Know it's a stupid question but a tune for e85 I don't even know any servos near me which sell that stuff. Anyone know of any good nistuners here which aren't too expensive? Link to comment https://www.sau.com.au/forums/topic/443794-nistune-and-stock-ecu-emmisions-drama-r32-gtr/#findComment-7298028 Share on other sites More sharing options...
chris1600dat Posted May 30, 2014 Author Share Posted May 30, 2014 It is over in all emmisons all three sections. Which the guy said was strange. I will try the cat first go back see if it improves then do the tune. Is it possible to download the nistune software and see what the car is doing? Link to comment https://www.sau.com.au/forums/topic/443794-nistune-and-stock-ecu-emmisions-drama-r32-gtr/#findComment-7298030 Share on other sites More sharing options...
Badgaz Posted May 30, 2014 Share Posted May 30, 2014 yes....go here www.nistune.com Link to comment https://www.sau.com.au/forums/topic/443794-nistune-and-stock-ecu-emmisions-drama-r32-gtr/#findComment-7298049 Share on other sites More sharing options...
Dose Pipe Sutututu Posted May 30, 2014 Share Posted May 30, 2014 but you'll need the PLMS cable & license.. the free one is stupid, it times out and after a few connects makes you register. Link to comment https://www.sau.com.au/forums/topic/443794-nistune-and-stock-ecu-emmisions-drama-r32-gtr/#findComment-7298052 Share on other sites More sharing options...
Ben C34 Posted May 30, 2014 Share Posted May 30, 2014 (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 May 30, 2014 by Ben C34 Link to comment https://www.sau.com.au/forums/topic/443794-nistune-and-stock-ecu-emmisions-drama-r32-gtr/#findComment-7298056 Share on other sites More sharing options...
chris1600dat Posted May 30, 2014 Author Share Posted May 30, 2014 I have both of those. I have a wideband fitted and the consult cable as well. I need some direction to see where to start Link to comment https://www.sau.com.au/forums/topic/443794-nistune-and-stock-ecu-emmisions-drama-r32-gtr/#findComment-7298225 Share on other sites More sharing options...
chris1600dat Posted May 30, 2014 Author Share Posted May 30, 2014 The hardest part is I can't really drive it as it has no plates and is not registered. So it only gets driven to and from the emmisons testing facility. I've heard unigroup are pretty good with nistunes? Link to comment https://www.sau.com.au/forums/topic/443794-nistune-and-stock-ecu-emmisions-drama-r32-gtr/#findComment-7298228 Share on other sites More sharing options...
Dose Pipe Sutututu Posted May 30, 2014 Share Posted May 30, 2014 are you in sydney? I can help OR just drop it off at a tuning shop 1 Link to comment https://www.sau.com.au/forums/topic/443794-nistune-and-stock-ecu-emmisions-drama-r32-gtr/#findComment-7298229 Share on other sites More sharing options...
chris1600dat Posted May 30, 2014 Author Share Posted May 30, 2014 Yeah mate if you can help I'm happy to pay for some help or advice. I don't have a PC laptop or the connection for my mac so if you want to lend a hand I am happy to pay for your time and experience. I'm in Sydney Link to comment https://www.sau.com.au/forums/topic/443794-nistune-and-stock-ecu-emmisions-drama-r32-gtr/#findComment-7298257 Share on other sites More sharing options...
phatlavish Posted May 30, 2014 Share Posted May 30, 2014 Toshi over in north ryde can probably help tuning it back to be very efficient, he's a business trader on these forums Link to comment https://www.sau.com.au/forums/topic/443794-nistune-and-stock-ecu-emmisions-drama-r32-gtr/#findComment-7298660 Share on other sites More sharing options...
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