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7th Gen In the years from 2001 to 2005 Honda released it's 7th Generation Civic. Chassis codes: EM2, ES1, EP3, EU1

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Old 06-22-2009   #1
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how do you properly reset the ecu

ive looked at multiple sites and have gotten multiple answers like disconnect the battery and pump the brakes ten times then connect the battery and let idle till warm, connect battery and go to 3000rpms for 2 minutes ,drive on roads and highway for half an hour while turning on all electrical accessories . plus many more so what's the proper way ????
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Old 06-22-2009   #2
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Re: how do you properly reset the ecu

1. drive car til its warmed up.
2. turn car off, disconnect battery or pull FI ECU fuse out.
3. put fuse back, start car, close hood
4. make sure all accessories are off, do not press any gas or brake
5. just let the car idle for 10 mins by itself
6. turn car off, then back on, and go for a drive like you normally do. it will take usually one tank of gas to completely relearn the fuel trims.

this is basically how the honda service manual says to do it. and its only done to correct idle problems caused by tinkering and taking apart intake throttle body and related sensors. this really is called "idle learn" procedure, which is essentially what you are doing by relearning the idle speed of 700 rpms.

heres the fuse

Click the image to open in full size.
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Old 06-22-2009   #3
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Re: how do you properly reset the ecu

1. drive car til its warmed up.
2. turn car off, disconnect battery or pull FI ECU fuse out.
3. put fuse back, start car, close hood
4. make sure all accessories are off, do not press any gas or brake
5. just let the car idle for 10 mins by itself
6. turn car off, then back on, and go for a drive like you normally do. it will take usually one tank of gas to completely relearn the fuel trims.

this is basically how the honda service manual says to do it. and its only done to correct idle problems caused by tinkering and taking apart intake throttle body and related sensors. this really is called "idle learn" procedure, which is essentially what you are doing by relearning the idle speed of 700 rpms.

heres the fuse

Click the image to open in full size.
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Old 06-22-2009   #4
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Re: how do you properly reset the ecu

what kind of gas should i use does it matter much ???
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Old 06-22-2009   #5
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Re: how do you properly reset the ecu

whatever you normally use. our cars were meant for 87 octane anyways. you don't want to "idle learn" your car for 91 when you pump 87 in it everyday.
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Old 06-22-2009   #6
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Re: how do you properly reset the ecu

the motor runs best on 87 octane and makes more power while operating cleaner. using the wrong octane will cause the ecu to adjust the timing and you will get worse power and mileage while clogging the engine with carbon buildup since 89-93 is too hard for our low compression motor to burn properly.
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Old 06-22-2009   #7
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Re: how do you properly reset the ecu

once again gearbox comes threw with the info . very much appreciated .
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Old 03-18-2013   #8
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Re: how do you properly reset the ecu

why ia their so many ways
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Old 03-18-2013   #9
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Re: how do you properly reset the ecu

Quote:
Originally Posted by lowlife9 View Post
ive looked at multiple sites and have gotten multiple answers like disconnect the battery and pump the brakes ten times then connect the battery and let idle till warm, connect battery and go to 3000rpms for 2 minutes ,drive on roads and highway for half an hour while turning on all electrical accessories . plus many more so what's the proper way ????
WOW like crazy man
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Old 03-18-2013   #10
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Re: how do you properly reset the ecu

4 year thread revival...
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