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Resetting ECU..?!?!

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Old Sep 5, 2003 | 09:57 PM
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Default Resetting ECU..?!?!

In resetting the ECU when bolt on's are installed......?

Is this needed?

I've heard you need to reset the ecu so your sensors will adjust the flow that has changed from the intake or exhaust......

Have you heard of this?

If it is true.....How?

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Old Sep 5, 2003 | 10:59 PM
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yes when installing lets say a intake,..its advise to reset the ECU,..one method of resetting the ECU is pulling the negative side on the battery,...pull it off and let sit for 10 mins or so,...put it back on,..then turn your car on,..DO NOT TOUCH THE GAS PEDAL,....just let it idle itself for another 15 mins,...after 15 mins,...turn the car off,..then turn the car back on,. your ECU should be reset
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Old Sep 5, 2003 | 11:02 PM
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Cool....Because I just put a cat back on my car so I can smog it and it's running a little funny........Like it wants to breath more.....

I try that tonight....

LAtes
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Old Sep 6, 2003 | 11:54 PM
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OBD2 will alwyas try to re-adjust for emissions...

so if you are going to smog, it might actually be smarter to let it drive for a week or so, and then smog, and it will correct the emissions...

Resetting it, sets it back to base, and it will have to re-learn your setup...

-PHiZ
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Old Sep 7, 2003 | 06:14 AM
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Do it like widebody said. Another way is taking out the fuse for the ecu instead of disconnection the neg. terminal. That way you don't have to reset the clock and radio stations.

I always disconnect the neg. terminal cause I don't really use any radio presets, and the clock is easy to set.
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Old Sep 7, 2003 | 04:04 PM
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Originally posted by Wharbone
Do it like widebody said. Another way is taking out the fuse for the ecu instead of disconnection the neg. terminal. That way you don't have to reset the clock and radio stations.

I always disconnect the neg. terminal cause I don't really use any radio presets, and the clock is easy to set.

Is the fuse for the ECU labeled "backup" or is that another fuse and if not what is the ecu fuse labeled?
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Old Sep 7, 2003 | 06:24 PM
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I'm not sure. I've never done it with the fuse. I imagine the fuse would say ecu on it.
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Old Sep 27, 2003 | 12:30 PM
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does this mean that my accord 97 non vtec will have the OBD2?
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Old Sep 27, 2003 | 12:33 PM
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i say it makes little to no differance....the whole job of the sensor is to SEE what is there... so why the hell would you need to reset it??? IF there is more air then the sensor will see it and the ecu will adjust... if it didn't then the sensor would be pointless
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Old Sep 27, 2003 | 02:16 PM
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Originally posted by oc_civic
i say it makes little to no differance....the whole job of the sensor is to SEE what is there... so why the hell would you need to reset it??? IF there is more air then the sensor will see it and the ecu will adjust... if it didn't then the sensor would be pointless
The fuel curves, and ignition timing are already set. It takes longer, and may not run right having to RElearn as opposed to just learning.

The biggest thing with doing this is to let it idle for a few minutes to let it set base curves for everything. OBD2 is WAY more toughy about this shit than obd1.
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