R33 Gtr Ecu Reset

[tommis85]

Hi all,

I'm still learning my ways around my GTR and am wondering if it's a good idea to reset the ECU now that the car is in Australia. I'm thinking that would good to do due to the higher altitude (I live at 600m above sea level - higher than where GTR came from), the poorer fuel RON count, the different temperatures and also the pod filters etc...

...and much more that I'm probably not aware off haha!

Are these some good points for doing a reset?

I take it that, from other posts, that all you need to do is to disconnect the battery and then bleed any remaining power from the system by stomping on the anchors a couple times (as opposed to waiting 24hrs).

I also read that when you reconnect the juice you should then drive the GTR nice and hard through it's paces so that it learns the engine well. What sort of driving should I be doing? Gears, max rpms....speed???

Also, should I do it on a cold or hot engine as I like to let the car idle for a minute or longer on cold mornings (4 degrees at the momment)

Please advise ;-)

Cheers,

Tom

[steven22]

Definetely take it to a tuner and get it checked out. Especially the fuel map. I didnt do this and my car had a chip which caused it to lean out so much that piston 6 was destroyed.

[tommis85]

Damn that's not good...and that was entirely caused by the Japanese original tune that only suited it's life in Japan? Ok, well I might get onto one of the local tuners here and see what they can do...I'm not sure if simply disconnecting the battery is a bit rough haha!

[DLOOOK]

If your ECU is only a factory one, u wont need to get your fuel mapped etc . As its essentially non programmable. Just reset the ecu , the eCU will self learn with the new environment. If you want put it on a dyno to get a base power figure, so that you can compare it to your future mods.

[tommis85]

DLOOOK, yeh I thought as much. Do I need to do something with the steering as well...like this full left to right lock etc etc? Or can I just drive off with it and it'll do the rest as I go? I probably should have reset the thing a while ago!

[DLOOOK]

No you dont, just d/c the battery and press on the brake pedal a few times.

Not a biggie, your battery was probably disconnected @ compliance anyways.

Any mods on your car? Post a pic of your car!

[tommis85]

Ok thanks!

Nope, mine has no mods at all...it just has a set of mags and that's it haha! I ended up in court with my GTST so I just left the GTR stock. It doesn't even have an exhaust =P

Yep, they probably did have it disconnected but doesn't it take almost a day or so for the juice to drain out of the system leaving the ECU with a blank slate? I'll see how it goes anyway.

(that's without pumpin the brakes etc)

Hmm dunno about the pic...I don't know if the moderators let you put up pr0n

...that's mine in the avatar.

Edited June 25, 2008 by tommis85

[steven22]

Yeah true, resetting the ecu will make it adapt to the new fuel, but, if you car by chance has a piggy back chip on it that was installed in Japan, like mine, then you will want to get it dissabled and get everything checked so you can be sure that your freshly reset ecu wont be controlled by a nasty Jap Chip.

Edited June 26, 2008 by steven22

[tommis85]

Hi Steven, would this chip be visible as in being plugged in along side it or is it hidden inside the ECU, integrated with the circuitry? I might crawl in their and have a look first. Mine was 100% stock when it came over...it only had a turbo timer in it and that's it. It has proven genuine k's and also nothing in the engine bay was changed for when it came over ie. pod filters replaced with airbox for compliance etc.

Yeh, I'm thinking it will be best for aussie fuel and the altitude (lower air pressure / lower density for AFM to read and mix etc) I live at - should be most noticeable in those areas.

Does your GTR have the Nissan smoke screen feature when you drive *enthusiastically* ??

[DAN00H]

tom - what are you referrign to as 'smoke screen feature'? hopefully its just the rich factory tune you are referring to?

really no need to reset your ECU again. sounds like yours is bog stock anyway.

[tommis85]

Dan, haha yeh just the richness mate. They run immensely rich don't they? It would be interesting to see what sort of millage they have when you up it.

I actually do have another little problem but I might put it up in a new post - it's also what made me start thinking about resetting the ECU. I'll put a link in here for it when I post it up for you guys.

Edited June 26, 2008 by tommis85

[tommis85]

Guys, here's the link for the new post....please have a read and see if any of this sounds familiar! I'm dying to get to the bottom of it!

Thanks

Tom

[steven22]

Im not sure about that smokescreen thing, and I dont know what sort of chip it was or its arrangement with the standard ecu. I only found out it had a chip when it was at the tuners.

[tommis85]

Ah ok man....well, perhaps it would be better if I let my mechanic have a look at it so that I don't bugger something up? See what happens I guess....it shouldnt be too bad hehe - why would they chip my totally stock GTR?

Are you referring to one of those gay 30hp chips that people fall for and get installed in their commies?

[DLOOOK]

You cant remap a 33 GTR ECU (otherwise i would get it done lol). So people that run remaped ecu's in there 33 GTR's run a 32 GTR ECU with a daughterboard or an aftermarket ECU ie Mines.