Jump to content
SAU Community

Ignition Issue?

Aaron BNR32 GTS-T

By Aaron BNR32 GTS-T,
in Engines & Forced Induction

 Share

Recommended Posts

Aaron BNR32 GTS-T Collaborator

Aaron BNR32 GTS-T

Posted
Posted

ok so i hooked up an 'ECU TALK' to my r32 gtst and i have found that when the car is cold the ignition timing is out...

it goes from the normal 15*btdc at idle to 7* btdc up tp around 2800rpm then starts working as normal from there to red line.

once the car gets warm it stops and i dont experiance it until the car is stone cold again. i just replaced the coilpacks with splitfires

and it still happens so thats no the issue

my question is what could be causeing this? crank angle sensor? i recently did the timing belt and everything was sweet and looked in order

cheers for the help

Link to comment
https://www.sau.com.au/forums/topic/378310-ignition-issue/
Share on other sites
rob82 Mentor

rob82

Posted
Posted

ok so i hooked up an 'ECU TALK' to my r32 gtst and i have found that when the car is cold the ignition timing is out...

it goes from the normal 15*btdc at idle to 7* btdc up tp around 2800rpm then starts working as normal from there to red line.

once the car gets warm it stops and i dont experiance it until the car is stone cold again. i just replaced the coilpacks with splitfires

and it still happens so thats no the issue

my question is what could be causeing this? crank angle sensor? i recently did the timing belt and everything was sweet and looked in order

cheers for the help

Its commanding that value - therefore its in the tune.

I believe its a catalyst warm up function. I've havn't disassembled these ECU's enough to find where it requests the retard from but I'm guessing its a single signed 8-bit value added to the main table.

Link to comment
https://www.sau.com.au/forums/topic/378310-ignition-issue/#findComment-6032800
Share on other sites
GTSBoy Grand Master

GTSBoy

Posted
Posted

I concur. I had always thought that the standard tune locked in 15° until it was warm. On my car, pretty much the instant the temp gauge made it to the centre of scale you can feel the timing unlock and it gives a tiny little jump. Doughy before that and normal afterwards. As carns says, you can adjust this with Nistune.

Link to comment
https://www.sau.com.au/forums/topic/378310-ignition-issue/#findComment-6033525
Share on other sites
Aaron BNR32 GTS-T Collaborator

Aaron BNR32 GTS-T

Posted
  • Author
Posted

standard they pull shitloads of timing so just needs a retune with nistune or something. Can make the car drive pretty shit when cold once you start modifying stuff.

yeah i have found that ot goes like a sack of shit when its coldish, i do need to take it to get tuned cause it didnt get a full tune in the first place because of coil pack failure :(

just got to put my front mount on and she will be ready for the tuners :)

but this shouldnt damage my engine if i drive it like this until then?

Link to comment
https://www.sau.com.au/forums/topic/378310-ignition-issue/#findComment-6034186
Share on other sites
GTSBoy Grand Master

GTSBoy

Posted
Posted (edited)

It's actually better for it to run low timing numbers while it warms up. a) it helps warm it up faster, b) it stops you from driving it hard until it has at least a little heat in it. The only reason to adjust it is if it is being a complete pig because of being modified away from where the Nissan methods works. If it's just being a little doughy then best leave it as it is. My car is basically stock (injectors and turbo are stock), so it still behaves more or less as Nissan intended. My temp gauge comes up to mid scale after just a few minutes of driving if I drive straight off from a cold start. That's where the cold start retard ends. That's OK with me. So I didn't bother changing it when I tuned the ECU.

Edited by GTSBoy
Link to comment
https://www.sau.com.au/forums/topic/378310-ignition-issue/#findComment-6034218
Share on other sites
Aaron BNR32 GTS-T Collaborator

Aaron BNR32 GTS-T

Posted
  • Author
Posted

yeah mines a pig lol a truck taking off from the lights is the same acceleration speed lol

i have exhaust, ARC intake, ARC side mount, turbo back exhaust, blah blah blah lol so maby

i should get it all sorted when i get it re tuned :)

Link to comment
https://www.sau.com.au/forums/topic/378310-ignition-issue/#findComment-6034229
Share on other sites

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

    • silviaz
      Need AC Compressor for R32

      By silviaz · Posted

      Is rebuilding it even a thing? Where would the shop find parts for it? I looked at some off these local online stores for my r34 and suprisingly they had brand new aftetmarket ones for $600-800 I think. I guess r32 might be a bit tougher.
    • Dose Pipe Sutututu
      Does 98ron contain ethanol?

      By Dose Pipe Sutututu · Posted

      I remember the days when E85 was priced in according to the $ per km outcome. Sure E85 was about 35% cheaper, but you also lost about 35% range... now it's fked..
    • GTSBoy
      A little PU bush story

      By GTSBoy · Posted

      They do. The pale yellow translucent ones from Japan were .... I dunno. Useless? Whiteline and SuperPro are probably fairly similar. There's bound to be a range of different hardnesses amongst the dozens of options on the market. The simple fact is that the pineapples don't get up inside the bush at all. They just sort of exist in the space between the washer/bracket and the subframe's bush outer tube, and...exert a bit of force between them? Or something like that. I'm sure that with enough provocation, they will simply allow one to move wrt the other.
    • Kinkstaah
      A little PU bush story

      By Kinkstaah · Posted

      I'm not sure they came in different hardnesses? Going from memory only - I had set them up in the balanced setup. I also have poly bushes, so I have both poly bushes and pineapples. This is what my memory tells me at least. I'll have to take a look under there to be sure. The tramp was so bad that I managed to eject/kill a diff bushing, so those I know are stock. The tramp is bad enough that you are 200% sure you are doing severe damage to the car. It's not just chirping or vibration, it feels like you're hitting a speed hump/kerb 10 times a second. The issue has persisted between subframes! (I went from Hicas to non hicas subframe and replaced every bush a few years ago now) so I'm entirely lost. Every arm is factory.
    • Butters
      Need AC Compressor for R32

      By Butters · Posted

      Can recommend the Frenchys kit, been using it 2 years now with no issue, very happy with it.  Only thing for me was upgrading the thermo fan but I am super fussy on cooling.   Also interested in electric AC, partly for boot mount to have a clean bay and partly would love the idea of cooling off the car before i get in. The battery setup to do that might be tricky / expensive though.  Found this an interesting watch.    
×
×
  • Create New...