Reseting ECU.... HOW TO!? - Nissan Forum
GA16DE 1.6L Engine Engine Discussion: 91-99 Sentra, 95-98 200SX, 91-93 NX1600

 
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post #1 of 9 Old Mar 5th, 2003, 03:48 PM Thread Starter
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Reseting ECU.... HOW TO!?

What are the steps to reseting the ecu?.. like.. do you turn the car on, then reset it, or do you have the car off.. ignition active? what.. exactly do you do?.. i want to go ahead, and reset mine.. cause i set my 02 back behind the cat.. and put a new EGR pipe on..

WHat are the steps.. the search failed.
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post #2 of 9 Old Mar 5th, 2003, 03:53 PM
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disconnect the battery overnight

Silver '96 200SX SE: fresh '98 GA16, I/H/E, JWT Turbo Clutch & Flywheel, Motor Mounts, Prokits & GR-2s, 11" FastBrakes, 18" OZ Cronos
Parts sitting in the closet: Hotshot GT28RS turbo kit, 3" SS Exhaust, JWT ECU, S14 MAF .... I'm hungry can I bum a couple $?
post #3 of 9 Old Mar 5th, 2003, 04:05 PM
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I am no way responsible for any damages or injuries caused by doing these modifications. WORK AT YOUR OWN RISK!!!!

How To Reprogram Your ECU:

The purpose of this tech article is to show you how to reprogram the ECU to give you better gas mileage after an upgrade.
After you get a performance upgrade (i.e. Headers, Exhaust, Intake, Etc.) follow the following steps to reprogram your computer. Turn on the car and warm it up. Make sure that itís running at its normal idle. Next, turn off the car and pull your ECU fuse located in the fuse box under the hood. Keep the fuse out for at least 5 minutes, then plug the fuse back in and close the hood. Start your car making sure NOT TO TOUCH THE GAS WHEN YOU START IT UP!! Let the car idle at its normal idle speed for about 3-4 minutes, then shut off car and restart once again.
Thatís it! Your ECU is programmed to give the proper air and fuel mixture for your upgrades. By taking out the fuse you kill all power to your computer and resetting the "program" that gives the mixture. Now by not touching the gas as you fire it back up, it will reprogram itself to give you the best MPH as it can.
post #4 of 9 Old Mar 5th, 2003, 04:44 PM
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as ruskiyab said -- not responsible -- but this is the same info you would find on nismo performance mag only in a bit different lay out...

scroll to the bottom of page
http://www27.brinkster.com/mavenali/ecu.shtml

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post #5 of 9 Old Mar 5th, 2003, 07:02 PM
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I'd bet my car that you couldn't do any damage by doing that. The same sequence of events can easily occur when doing various other things to your car which may involve the battery being disconnected. But it never hurts to disclaim, some moron might do something outside of the directions and screw something up. That's why coffee cups have to say "Warning! Contents may be hot!" or why on a desktop fountain package it says, "water not included."

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post #6 of 9 Old Mar 5th, 2003, 08:30 PM
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Here is a link, that provides the error code discriptions and how to reset.
Tech_ECU codes and descriptions.
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post #7 of 9 Old Mar 5th, 2003, 09:45 PM
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Quote:
Originally posted by Nostrodomas
Here is a link, that provides the error code discriptions and how to reset.
Tech_ECU codes and descriptions.
Good info.

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post #8 of 9 Old Mar 5th, 2003, 10:48 PM
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I like my method I can reset my ecu in my sleep! lol

Silver '96 200SX SE: fresh '98 GA16, I/H/E, JWT Turbo Clutch & Flywheel, Motor Mounts, Prokits & GR-2s, 11" FastBrakes, 18" OZ Cronos
Parts sitting in the closet: Hotshot GT28RS turbo kit, 3" SS Exhaust, JWT ECU, S14 MAF .... I'm hungry can I bum a couple $?
post #9 of 9 Old Mar 6th, 2003, 09:30 AM
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Quote:
Originally posted by ruskiyab
I am no way responsible for any damages or injuries caused by doing these modifications. WORK AT YOUR OWN RISK!!!!

How To Reprogram Your ECU:

The purpose of this tech article is to show you how to reprogram the ECU to give you better gas mileage after an upgrade.
After you get a performance upgrade (i.e. Headers, Exhaust, Intake, Etc.) follow the following steps to reprogram your computer. Turn on the car and warm it up. Make sure that itís running at its normal idle.
That won't reprogram your ecu...it only resets it back to factory presets... It will still take time for it to re-learn.
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  Nissan Forum > Sentra, Pulsar, NX, B14 200SX > GA16DE 1.6L Engine

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