Resetting Ecu On R33 Gtst

[jimmytim]

Hi all,

I've searched and read, but still not sure which two pins to short.

So I've taken photos of the fuse box area and hope someone can give me a pointer!

I'm guessing it should be somewhere here:

Thank you!

[Ol_Mate]

take -ve lead off the battery, depress brake pedal, reconnect battery, start car, done.....

[jimmytim]

What if I don't want to unplug the battery lead?

[Kinks]

What if I don't want to unplug the battery lead?

it's far easier than shorting out your wiring harness, causing a fire, and watching your pride and joy burn to the ground.

ok maybe i'm exaggerating, but seriously.. taking the battery terminal off is by far the easiest way.

[Ol_Mate]

What if I don't want to unplug the battery lead?

Then you're a sook.... jks

[jimmytim]

Okay...I'll do the battery negative terminal then.

BTW, I'll assume the factory audio does not have protection right?

And since there is a backup battery for the alarm, just ignore it right?

[Trav33]

Isn't the ECU in the passenger side kick panel? So any pins which need to be shorted would be over there, not under the drivers side?!!!

Disconnect battery is the best way to go.

[MANWHORE]

I personally do not feel comfortable wiht the shorting the pin method, because I have not read that in any of my nissan manuals (someone correct me if I'm wrong, because the indexing of the manuals is very bad).

Disconnecting the battery seems to work sometimes if it's disconnected for a long period of time but I hate losing my radio stations.

Nowadays, I just use my laptop to do it. I can reset the ecu and clear the self learn.

[Munkyb0y]

correct me if i'm wrong....and i know this is a long standing debate...but resetting the ecu does sweet fuuck all....apart from clearing your error codes.

the ecu learns everytime the car is switch back on. it doesnt have the capacity for long term memory of the parameters you're hoping to 're-learn'.

ive been told this by tuners, and other ppl who have technical knowledge of ecu's. and it makes total sense.

why would the ecu restrict its ability to adapt to new situations, and only work at its best when ppl with 'supposedly' inside information decide to disconnect their battery.

ive tried it, made no difference at all.

[siddr20]

It made a difference to my car..

How?

Well it doesnt run as rich anymore..

It doesnt smell as much of exhaust fumes due to the car not running as rich..

The car actually felt a lot better once it was reset..

For me it worked. Gettin more milage.

----

Remember to dc the alarm.. Otherwise you gonna go deaf like me lol when you dc the battery..

And yup your headunit settings will be reset.

[markimak]

hmm but im sure a car wont fully relearn every new value produced. i like to reset my ECU on my mates car after i do anything that may affect AFR or if i clean the intake out..

doesnt hurt. did wonders on my GTiR apparently.

[123456]

I thought the wires to be shorted were on the ecu, not the fuse box.

Resetting mine didn't do anything either.. Wouldn't the ecu just be set up to react to current environments and not remember the way the weather and your driving has been for the last 6 months.. That seem's the logical way to set it up to me

[jimmytim]

BTW, can I use nissan data scan to reset the ecu?

Reading here: http://202.43.226.57/

Last item on point 4 "clear self learn", that is the one isn't it?

(maybe I'll build one and have more fun with the car )

[MANWHORE]

I don't know about data scan. Its not my favourite consult software. My software can result the ecu itself as well as the self learn.

[siddr20]

Just take the god damn negative terminal out.. simple..

lol

[jeffworld2]

i thought that the ecu would adjust itself to new mods quicker if you clear it, as it would adjust in large increments when first trying to learn, then smaller and smaller as it gets closer to optimum. when you change something tho, it has to use these tiny increments to get to the new optimum running...

so reset it and it starts off big again

thats my lil story

[tom9999]

i reset mine and it didnt do anything performance wise amd now on a cold start it starts like shit.

[cowie165]

I don't know about data scan. Its not my favourite consult software. My software can result the ecu itself as well as the self learn.

What are you using dude? At the moment I'm using ECU Talk, but I'm interested in whatever does the best job.

[jeffworld2]

so reset it again.. cant hurt

[jimmytim]

What is the cable you guys use to connect to the notebook?

There are two different ones I see on the market, one is my http://www.blazt.biz/ and another by http://www.plmsdevelopments.com/consult_if.shtml