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Complete ECU reset

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Old Dec 31, 2004 | 09:40 AM
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Default Complete ECU reset

Just disconnect the negative battery terminal for 24 hours? Will this work on 2004 models? Are there any CEL or airbag, etc lights that come on after the complete reset of the ecu?
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Old Dec 31, 2004 | 05:15 PM
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bump for info
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Old Dec 31, 2004 | 06:00 PM
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http://www.technosquareinc.com/350reset.htm
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Old Jan 20, 2005 | 06:32 AM
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What will resetting your ecu do. Will it harm anything if you have some mods? I have an injen cai, borla tru dual, ur pulleys and hyper grounding wires.
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Old Jan 20, 2005 | 07:27 AM
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man i tried to reset my ecu like 10 times now using technosquare's info . and i cant get it to work. has anybody else sucessufully reseted their ecu?
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Old Jan 20, 2005 | 04:17 PM
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You have to do it with a stop watch, timing is critical.
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Old Jan 20, 2005 | 04:22 PM
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Originally posted by xsmallpaulx
man i tried to reset my ecu like 10 times now using technosquare's info . and i cant get it to work. has anybody else sucessufully reseted their ecu?
I got it to work. The instructions are fairly straightforward, but for some reason I was sitting there and freaking out I would forget something or do it wrong. A stop watch is helpful if you can't consistently count the times you hit the pedal.
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Old Jan 21, 2005 | 08:47 AM
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What does resetting the ecu do? My VDC, trac, and brake line come on all at the same time now and was wondering if resetting the ecu would fix this.
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Old Jan 30, 2005 | 10:19 AM
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reseting the ecu will clear the CEL light and get back power gains from mods that the ecu slowly adjusts for (in my opinion). I do it once a week and i do feel the difference.
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Old Jan 30, 2005 | 07:19 PM
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So is there a big difference when you reset the ecu
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Old Jan 31, 2005 | 06:52 AM
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Originally posted by mrZ
reseting the ecu will clear the CEL light and get back power gains from mods that the ecu slowly adjusts for (in my opinion). I do it once a week and i do feel the difference.
That doesnt make any sense. Once you reset the ecu and it adjust and learns it settings...thats it. Resetting it once a week is not going to make it learn extra information that will lead to more power.
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Old Jan 31, 2005 | 07:51 AM
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??? That sound a little strange to me too. Any how so doing this wont cause any problem? to my car
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Old Jan 31, 2005 | 08:18 AM
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Careful on doing this. It works on some cars, but not all. My production date is 7/04. People say that resetting the ecu by disconnecting the negative terminal will reset, or rather, put the car into a self-learning mode. But you have to also set the throttle, idle, etc for it. If you don't you could have serious problems. Technosquare couldn't help me when this happened:

My buddy has an 03, he reset and everythign went great (he was idling high and running too rich, etc.)

I reset mine and idled low, stalling on warm startups occasionally chugging. This was due to the ecu reset. Nissan set the idle air volume learning, etc for the car and now everything's fine. I also waited for a month for the Z to supposedly learn on its own, but the car still seemed "sick".
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Old Jan 31, 2005 | 08:22 AM
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So should i do the Technosquare ecu reset then. Looks like disconnecting the batt will cause more problems than help.
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Old Jan 31, 2005 | 10:05 AM
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If I was you I would contact nissan and see if they will tell you how.
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Old Jan 31, 2005 | 02:04 PM
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Originally posted by nuff
You have to do it with a stop watch, timing is critical.
I have done it successfully several times using "one one-thousand, two one-thousand ...". It takes several tries the first few times until you learn the timing. After that, it is fairly easy.
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Old Feb 11, 2005 | 11:07 AM
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Originally posted by ___DJK___
http://www.technosquareinc.com/350reset.htm
I wonder who was the idiot that came up with this method to reset the ECU. Why not put a reset button somewhere in a hidden location?
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Old Mar 28, 2005 | 07:18 PM
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When resetting the ecu, it says to stomp on the accellerator 5 times and then depress within 5 seconds. Does this have to be done at exactly one time per second?

I was in my car for like 10 minutes and gave up. I used a watch and counted the seconds, but no matter how hard I tried it felt like I paniced and was off by a half a second.

Any help? I'd like to see if this makes any difference on my z.

ravi
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Old Mar 28, 2005 | 08:12 PM
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Disconnect battery for 13 hrs, or try the Technosquare "easy" way but it's a b1tch to nail it just right...
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Old Mar 28, 2005 | 10:19 PM
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Originally Posted by copba1t
Disconnect battery for 13 hrs, or try the Technosquare "easy" way but it's a b1tch to nail it just right...
so disconnecing for 13Hours will do the same thing as going through all the steps listed on the web site????

What us the benefit or reason one would want to do the other steps... listed below....

1. Accelerator Pedal Release Position Learning
2. Throttle Valve Closed Position Learning
3. Idle Air Volume Learning (Throttle Position Learning)

Last edited by redline350ZZ; Mar 28, 2005 at 10:23 PM.
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