resetting ecu?
Honda-Tech Member
Joined: May 2005
Posts: 654
Likes: 0
From: skateland
Re: (Honda-Master)
Actually resetting the ECU is a very good idea after mods or enviromental changes.
After you perform any modification to your car. You should reset your ecu so it can clear its memory and re-learn and adapt to the new parts. Instead of having it try to optimize in with its old parts. Its best to reset and let it learn from the new setup....instead of trying to get it to forget the old.
here's how: It can be easily done by unplugging the negative battery cable connection. If I remember correctly my chilton manual says 30 seconds. I still try to leave it off as long as possible. Into the night and possibly next morning if you can.
Then you connect the cable back on. Then start the car outside , let it run till its full warm. Normally 5-10minutes during the summer. Some wait till they hear the fan kick on....but you really just need to see the temp gauge at its normal operation position. Do not touch the gas pedal. Then once warmed.
Shut off and use when you are ready.
Also some like to take the car out and run it hard around 3times. Basically 1st through 3rd like you are racing. Of course this sounds kinda weird , I dont know if to believe this. But it cant hurt and it sounds logical , so it doesnt get some weak run and try to learn from that , you immediatly feed it some hard runs to set it self to and you should be good.
You also have to reset it for every mod. I also do it for every season change. This also lets your car adjust to the environment , different humidites and oxygen levels and densities. All are different variables that can effect your cars performance. So to take full advantage , you again want your car to learn and base its settings off a smaller period of time. So resetting it in lets say winter, its like its whole life was driven in the winter , and so on and so forth. Instead of having it try to adapt from its summer time conditions over to the winter...its best to just start fresh.
-- NOTE , do not try resetting your ecu when you have any sort of fuel additives or things in your car that you wouldnt normally have. So fuel cleaners , higher octane fuel , different fuel than you normally run...dont try this then.
After you perform any modification to your car. You should reset your ecu so it can clear its memory and re-learn and adapt to the new parts. Instead of having it try to optimize in with its old parts. Its best to reset and let it learn from the new setup....instead of trying to get it to forget the old.
here's how: It can be easily done by unplugging the negative battery cable connection. If I remember correctly my chilton manual says 30 seconds. I still try to leave it off as long as possible. Into the night and possibly next morning if you can.
Then you connect the cable back on. Then start the car outside , let it run till its full warm. Normally 5-10minutes during the summer. Some wait till they hear the fan kick on....but you really just need to see the temp gauge at its normal operation position. Do not touch the gas pedal. Then once warmed.
Shut off and use when you are ready.
Also some like to take the car out and run it hard around 3times. Basically 1st through 3rd like you are racing. Of course this sounds kinda weird , I dont know if to believe this. But it cant hurt and it sounds logical , so it doesnt get some weak run and try to learn from that , you immediatly feed it some hard runs to set it self to and you should be good.
You also have to reset it for every mod. I also do it for every season change. This also lets your car adjust to the environment , different humidites and oxygen levels and densities. All are different variables that can effect your cars performance. So to take full advantage , you again want your car to learn and base its settings off a smaller period of time. So resetting it in lets say winter, its like its whole life was driven in the winter , and so on and so forth. Instead of having it try to adapt from its summer time conditions over to the winter...its best to just start fresh.
-- NOTE , do not try resetting your ecu when you have any sort of fuel additives or things in your car that you wouldnt normally have. So fuel cleaners , higher octane fuel , different fuel than you normally run...dont try this then.
Thread Starter
Joined: Dec 2005
Posts: 84
Likes: 0
From: Flagstaff, Arizona, USA
Re: (specbb6)
yea I disconnected the negative terminal while I was installing it, it should be fine, also my first test run was hard and fast, so I think iM GOOD, THANKS FOR ALL YOUR INFO THOUGH, VERY HELPFUL... 
Honda-Tech Member
Joined: May 2005
Posts: 654
Likes: 0
From: skateland
Re: (OSIRIuS23)
resenting the ECU can also help to fix some WEIRD electrical problems. That plus disconecting the under dash fuse box helped me fixing an electrical problem on my buddy's civic.
In a Junkyard near you.
Joined: Mar 2004
Posts: 5,084
Likes: 2
From: Richmond, Va
Re: (specbb6)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by specbb6 »</TD></TR><TR><TD CLASS="quote">Actually resetting the ECU is a very good idea after mods or enviromental changes.
After you perform any modification to your car. You should reset your ecu so it can clear its memory and re-learn and adapt to the new parts. Instead of having it try to optimize in with its old parts. Its best to reset and let it learn from the new setup....instead of trying to get it to forget the old.
here's how: It can be easily done by unplugging the negative battery cable connection. If I remember correctly my chilton manual says 30 seconds. I still try to leave it off as long as possible. Into the night and possibly next morning if you can.
Then you connect the cable back on. Then start the car outside , let it run till its full warm. Normally 5-10minutes during the summer. Some wait till they hear the fan kick on....but you really just need to see the temp gauge at its normal operation position. Do not touch the gas pedal. Then once warmed.
Shut off and use when you are ready.
Also some like to take the car out and run it hard around 3times. Basically 1st through 3rd like you are racing. Of course this sounds kinda weird , I dont know if to believe this. But it cant hurt and it sounds logical , so it doesnt get some weak run and try to learn from that , you immediatly feed it some hard runs to set it self to and you should be good.
You also have to reset it for every mod. I also do it for every season change. This also lets your car adjust to the environment , different humidites and oxygen levels and densities. All are different variables that can effect your cars performance. So to take full advantage , you again want your car to learn and base its settings off a smaller period of time. So resetting it in lets say winter, its like its whole life was driven in the winter , and so on and so forth. Instead of having it try to adapt from its summer time conditions over to the winter...its best to just start fresh.
-- NOTE , do not try resetting your ecu when you have any sort of fuel additives or things in your car that you wouldnt normally have. So fuel cleaners , higher octane fuel , different fuel than you normally run...dont try this then.</TD></TR></TABLE>
I usually don't do this but have you any idea what your talking about?
There is absolutely no computer based need to reset the ECU with a cold air intake. Now if he had just replaced a cam or an IAC, yes you would need to reset the computer. But not for this.
Seasons? Race the car through 3 gears? None of those methods or theories are useful or required by any Honda. Not trying to be offensive I would just suggest doing some more learning before trying to explain something you don't fully understand.
After you perform any modification to your car. You should reset your ecu so it can clear its memory and re-learn and adapt to the new parts. Instead of having it try to optimize in with its old parts. Its best to reset and let it learn from the new setup....instead of trying to get it to forget the old.
here's how: It can be easily done by unplugging the negative battery cable connection. If I remember correctly my chilton manual says 30 seconds. I still try to leave it off as long as possible. Into the night and possibly next morning if you can.
Then you connect the cable back on. Then start the car outside , let it run till its full warm. Normally 5-10minutes during the summer. Some wait till they hear the fan kick on....but you really just need to see the temp gauge at its normal operation position. Do not touch the gas pedal. Then once warmed.
Shut off and use when you are ready.
Also some like to take the car out and run it hard around 3times. Basically 1st through 3rd like you are racing. Of course this sounds kinda weird , I dont know if to believe this. But it cant hurt and it sounds logical , so it doesnt get some weak run and try to learn from that , you immediatly feed it some hard runs to set it self to and you should be good.
You also have to reset it for every mod. I also do it for every season change. This also lets your car adjust to the environment , different humidites and oxygen levels and densities. All are different variables that can effect your cars performance. So to take full advantage , you again want your car to learn and base its settings off a smaller period of time. So resetting it in lets say winter, its like its whole life was driven in the winter , and so on and so forth. Instead of having it try to adapt from its summer time conditions over to the winter...its best to just start fresh.
-- NOTE , do not try resetting your ecu when you have any sort of fuel additives or things in your car that you wouldnt normally have. So fuel cleaners , higher octane fuel , different fuel than you normally run...dont try this then.</TD></TR></TABLE>
I usually don't do this but have you any idea what your talking about?
There is absolutely no computer based need to reset the ECU with a cold air intake. Now if he had just replaced a cam or an IAC, yes you would need to reset the computer. But not for this.
Seasons? Race the car through 3 gears? None of those methods or theories are useful or required by any Honda. Not trying to be offensive I would just suggest doing some more learning before trying to explain something you don't fully understand.
Trending Topics
Honda-Tech Member
Joined: May 2005
Posts: 654
Likes: 0
From: skateland
Re: (MooGoCow3)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MooGoCow3 »</TD></TR><TR><TD CLASS="quote">I usually don't do this but have you any idea what your talking about?
There is absolutely no computer based need to reset the ECU with a cold air intake. Now if he had just replaced a cam or an IAC, yes you would need to reset the computer. But not for this.
Seasons? Race the car through 3 gears? None of those methods or theories are useful or required by any Honda. Not trying to be offensive I would just suggest doing some more learning before trying to explain something you don't fully understand.</TD></TR></TABLE>
Your ECU is your cars brain. It tells your engine what to do and how to do it based on tons of readings it recieves along with how much throttle is being applied and so on.
After you perform any modification to your car. You should reset your ecu so it can clear its memory and re-learn and adapt to the new parts. Instead of having it try to optimize in with its old parts. Its best to reset and let it learn from the new setup....instead of trying to get it to forget the old.
Sorry kid, but I guess youre the one that needs to learn more... so STFU.
There is absolutely no computer based need to reset the ECU with a cold air intake. Now if he had just replaced a cam or an IAC, yes you would need to reset the computer. But not for this.
Seasons? Race the car through 3 gears? None of those methods or theories are useful or required by any Honda. Not trying to be offensive I would just suggest doing some more learning before trying to explain something you don't fully understand.</TD></TR></TABLE>
Your ECU is your cars brain. It tells your engine what to do and how to do it based on tons of readings it recieves along with how much throttle is being applied and so on.
After you perform any modification to your car. You should reset your ecu so it can clear its memory and re-learn and adapt to the new parts. Instead of having it try to optimize in with its old parts. Its best to reset and let it learn from the new setup....instead of trying to get it to forget the old.
Sorry kid, but I guess youre the one that needs to learn more... so STFU.
Joined: Oct 2005
Posts: 51
Likes: 0
From: Marietta, GA, Usa
Re: (Group A)
well if there is a performance increase at all, it will be very minimal. the cold air intake barely helps the car increase performance let alone changing the ECU every season. honda made the ECU so it would reconfigure itself automatically, so the average customer would not have to reset it every season. just about the only time you really need to reset the ECU is also if you just put in a turbo or supercharger.
In a Junkyard near you.
Joined: Mar 2004
Posts: 5,084
Likes: 2
From: Richmond, Va
Re: (specbb6)
.<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by specbb6 »</TD></TR><TR><TD CLASS="quote">Your ECU is your cars brain. It tells your engine what to do and how to do it based on tons of readings it recieves along with how much throttle is being applied and so on.
After you perform any modification to your car. You should reset your ecu so it can clear its memory and re-learn and adapt to the new parts. Instead of having it try to optimize in with its old parts. Its best to reset and let it learn from the new setup....instead of trying to get it to forget the old.
Sorry kid, but I guess youre the one that needs to learn more... so STFU.</TD></TR></TABLE>
I'm very well aware what an ECU does. Normally I would take such comments as an insult to my intelligence but seeing the level of intelligence you have given example of I have no need to be worried. I work on these cars every day, and go through Honda school 3 times a year, so i'm more than sure I know what i'm talking about.
But since you have such a gread deal of knowledge of Honda ECU's please show me in Honda service material where it states you need to perform Idle learn after installing a cold air intake. Again i'm not trying to be offensive (unlike yourself). I'm trying to have a decent conversation with you. I would appreciate it if you would show the same respect.
After you perform any modification to your car. You should reset your ecu so it can clear its memory and re-learn and adapt to the new parts. Instead of having it try to optimize in with its old parts. Its best to reset and let it learn from the new setup....instead of trying to get it to forget the old.
Sorry kid, but I guess youre the one that needs to learn more... so STFU.</TD></TR></TABLE>
I'm very well aware what an ECU does. Normally I would take such comments as an insult to my intelligence but seeing the level of intelligence you have given example of I have no need to be worried. I work on these cars every day, and go through Honda school 3 times a year, so i'm more than sure I know what i'm talking about.
But since you have such a gread deal of knowledge of Honda ECU's please show me in Honda service material where it states you need to perform Idle learn after installing a cold air intake. Again i'm not trying to be offensive (unlike yourself). I'm trying to have a decent conversation with you. I would appreciate it if you would show the same respect.
Honda-Tech Member
Joined: May 2005
Posts: 654
Likes: 0
From: skateland
Re: (MooGoCow3)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MooGoCow3 »</TD></TR><TR><TD CLASS="quote">.
I'm very well aware what an ECU does. Normally I would take such comments as an insult to my intelligence but seeing the level of intelligence you have given example of I have no need to be worried. I work on these cars every day, and go through Honda school 3 times a year, so i'm more than sure I know what i'm talking about.
But since you have such a gread deal of knowledge of Honda ECU's please show me in Honda service material where it states you need to perform Idle learn after installing a cold air intake. Again i'm not trying to be offensive (unlike yourself). I'm trying to have a decent conversation with you. I would appreciate it if you would show the same respect.</TD></TR></TABLE>
cool man
Oh yeah...If you think all I said before is BS do a research.
I'm very well aware what an ECU does. Normally I would take such comments as an insult to my intelligence but seeing the level of intelligence you have given example of I have no need to be worried. I work on these cars every day, and go through Honda school 3 times a year, so i'm more than sure I know what i'm talking about.
But since you have such a gread deal of knowledge of Honda ECU's please show me in Honda service material where it states you need to perform Idle learn after installing a cold air intake. Again i'm not trying to be offensive (unlike yourself). I'm trying to have a decent conversation with you. I would appreciate it if you would show the same respect.</TD></TR></TABLE>
cool man
Oh yeah...If you think all I said before is BS do a research.
Honda-Tech Member
Joined: Aug 2002
Posts: 17,222
Likes: 3
From: SoCal
Re: (BLKFLSH)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BLKFLSH »</TD></TR><TR><TD CLASS="quote"> Resetting the ECU for an intake is like reinstalling Windows on your computer because you installed a new game. Unnecessary, and a waste of time. 
</TD></TR></TABLE>
Some people do it but it's not exactly a must.
the car would adjust to the "mod" by itself sooner or later
</TD></TR></TABLE>Some people do it but it's not exactly a must.
the car would adjust to the "mod" by itself sooner or later
In a Junkyard near you.
Joined: Mar 2004
Posts: 5,084
Likes: 2
From: Richmond, Va
Re: (BLKFLSH)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BLKFLSH »</TD></TR><TR><TD CLASS="quote"> Resetting the ECU for an intake is like reinstalling Windows on your computer because you installed a new game. Unnecessary, and a waste of time. </TD></TR></TABLE>
That's what I was looking for but couldn't think of something clever enough.
</TD></TR></TABLE>That's what I was looking for but couldn't think of something clever enough.
Honda-Tech Member
Joined: Dec 2005
Posts: 688
Likes: 1
From: Orlando, FL, USA
Re: (iam7head)
I had a problem where I thought I was losing gas mileage with the CAI.
Honestly, it's because we like to hear the loud "roar" from the new larger intake and we hit the gas harder out of intersections. I just eased off the redlines out of intersections and my mileage returned to normal.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BLKFLSH »</TD></TR><TR><TD CLASS="quote"> Resetting the ECU for an intake is like reinstalling Windows on your computer because you installed a new game. Unnecessary, and a waste of time. </TD></TR></TABLE>
couldn't agree more.
Honestly, it's because we like to hear the loud "roar" from the new larger intake and we hit the gas harder out of intersections. I just eased off the redlines out of intersections and my mileage returned to normal.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BLKFLSH »</TD></TR><TR><TD CLASS="quote"> Resetting the ECU for an intake is like reinstalling Windows on your computer because you installed a new game. Unnecessary, and a waste of time. </TD></TR></TABLE>
couldn't agree more.
Thread
Thread Starter
Forum
Replies
Last Post