Riddle me this...resetting ECU vs Driving hard
#61
Originally Posted by JKWright
I have to say that this thread has been the most technically interesting and polarized discussion I've read in the short time I've been here. No pissing contests, no name-calling, no juvenile I'm-taking-my-VQ-and-going-home attitude from anyone.
Two observations: One, this discussion could never take place on the coupe forum; and two, if the three air/fuel/spark advance maps really exist in the ECU, I've learned something really interesting. Thanks.
But I still stand by my assertion that resetting the ECU results in, at best, very short-term performance gains. Might be good at the dragstrip though if they'll let you stage and take a break for several hours before making your run. The guy in the Camaro next to you might get impatient, though.![Big Grin](https://g35driver.com/forums/images/smilies/biggrin.gif)
Two observations: One, this discussion could never take place on the coupe forum; and two, if the three air/fuel/spark advance maps really exist in the ECU, I've learned something really interesting. Thanks.
But I still stand by my assertion that resetting the ECU results in, at best, very short-term performance gains. Might be good at the dragstrip though if they'll let you stage and take a break for several hours before making your run. The guy in the Camaro next to you might get impatient, though.
![Big Grin](https://g35driver.com/forums/images/smilies/biggrin.gif)
In fact, it might make a good test to try. Do 2 runs pre reset and do 2 runs post reset. ...might make a difference. Certaintly cant hurt.
#62
#63
Don't forget - every conversation on this neglect this - that the Tranny control unit (TCU) is VERY MUCH affected by an ECU reset IF you have an auto. Everyone that has an auto will very much see a performance difference from at least the tranny.
As far as the slam to CHEBESTO a few pages back. He's not Adam - he's a Tecnosquare (or was) employee that was involved in programming the ECU for the reflash people are paying $700 bucks for. There are few who may know more about the ECU than those at Techosquare.
After all they know the mapping - they know the variables involved and how inputs affect the map and the resultant output as they re-programmed it all and it works in cars being driven every day by some very big experts that stay away from this board becasue people who know little act like the saviour and seek disciples rather than allowing the free flowing exchange of ideas and the search for the right answer and generally create a bad environement for those with little patience for idiocy.
I find DaveB's findings very interesting as my car with an Injen intake after a reset would sound like a Cobra Mustang and then calm down after a week of low mile driving. Z tube is not as resonant as a stainless pipe and other factors must come into play so the variable change to much to make any sense of that tho..
As far as the slam to CHEBESTO a few pages back. He's not Adam - he's a Tecnosquare (or was) employee that was involved in programming the ECU for the reflash people are paying $700 bucks for. There are few who may know more about the ECU than those at Techosquare.
After all they know the mapping - they know the variables involved and how inputs affect the map and the resultant output as they re-programmed it all and it works in cars being driven every day by some very big experts that stay away from this board becasue people who know little act like the saviour and seek disciples rather than allowing the free flowing exchange of ideas and the search for the right answer and generally create a bad environement for those with little patience for idiocy.
I find DaveB's findings very interesting as my car with an Injen intake after a reset would sound like a Cobra Mustang and then calm down after a week of low mile driving. Z tube is not as resonant as a stainless pipe and other factors must come into play so the variable change to much to make any sense of that tho..
Last edited by SixFive; 07-14-2005 at 11:21 AM.
#64
Originally Posted by Hydrazine
From what I've seen on the dyno, resetting at the drag strip can help especially because your reving so high. At worst, it could do nothing at all.
In fact, it might make a good test to try. Do 2 runs pre reset and do 2 runs post reset. ...might make a difference. Certaintly cant hurt.
In fact, it might make a good test to try. Do 2 runs pre reset and do 2 runs post reset. ...might make a difference. Certaintly cant hurt.
#65
Join Date: Feb 2004
Location: South
Posts: 3,671
Likes: 0
Received 0 Likes
on
0 Posts
I agree 100%! We don't need to ruin a nice enviroment we had here before all these new owners came on saying no way!
Anyways, my car after a reset is now doing 21+ mpg city driving. I do about 100 miles a day for work. Before I was only getting 18-19 at the most even with some highway. And mine is a 6MT.
Anyways, my car after a reset is now doing 21+ mpg city driving. I do about 100 miles a day for work. Before I was only getting 18-19 at the most even with some highway. And mine is a 6MT.
Originally Posted by SixFive
Don't forget - every conversation on this neglect this - that the Tranny control unit (TCU) is VERY MUCH affected by an ECU reset IF you have an auto. Everyone that has an auto will very much see a performance difference from at least the tranny.
As far as the slam to CHEBESTO a few pages back. He's not Adam - he's a Tecnosquare (or was) employee that was involved in programming the ECU for the reflash people are paying $700 bucks for. There are few who may know more about the ECU than those at Techosquare.
After all they know the mapping - they know the variables involved and how inputs affect the map and the resultant output as they re-programmed it all and it works in cars being driven every day by some very big experts that stay away from this board becasue people who know little act like the saviour and seek disciples rather than allowing the free flowing exchange of ideas and the search for the right answer and generally create a bad environement for those with little patience for idiocy.
I find DaveB's findings very interesting as my car with an Injen intake after a reset would sound like a Cobra Mustang and then calm down after a week of low mile driving. Z tube is not as resonant as a stainless pipe and other factors must come into play so the variable change to much to make any sense of that tho..
As far as the slam to CHEBESTO a few pages back. He's not Adam - he's a Tecnosquare (or was) employee that was involved in programming the ECU for the reflash people are paying $700 bucks for. There are few who may know more about the ECU than those at Techosquare.
After all they know the mapping - they know the variables involved and how inputs affect the map and the resultant output as they re-programmed it all and it works in cars being driven every day by some very big experts that stay away from this board becasue people who know little act like the saviour and seek disciples rather than allowing the free flowing exchange of ideas and the search for the right answer and generally create a bad environement for those with little patience for idiocy.
I find DaveB's findings very interesting as my car with an Injen intake after a reset would sound like a Cobra Mustang and then calm down after a week of low mile driving. Z tube is not as resonant as a stainless pipe and other factors must come into play so the variable change to much to make any sense of that tho..
Last edited by G35_TX; 07-14-2005 at 07:51 PM.
#66
Originally Posted by G35_TX
I agree 100%! It's the people here that don't want to believe that need to just leave IMHO.
C'mon now, you're better than that. And really, that newbie line is getting old. I've owned VQ35s longer than you have. Guaranteed. Does that make me more of an expert than you on this subject? Nope, no more than your off-center assertion that your February 2004 join date here makes your word law.
#67
so to reset the ecu i should just disconnect the positive clamp fromt he battery for like 12hours or what?? and then another question is how do i drive the car after the ecu reset?? just normaly or get on it a little cmon people i got ****ty gas mileage i need all the help i can get
![Confused](https://g35driver.com/forums/images/smilies/confused.gif)
Last edited by LuXXXz; 07-14-2005 at 05:14 PM.
#68
Originally Posted by Hydrazine
In fact, it might make a good test to try. Do 2 runs pre reset and do 2 runs post reset. ...might make a difference. Certaintly cant hurt.
#69
Originally Posted by DaveB
I'll do it next time I'm out at the track. It's worth a try. I'll do a couple runs and then reset it and make a couple runs.
Try to regulate to +/-2 deg F before each run.
Regulate everything as if you were doing a dyno comparison and you should get valid test results. (what ever valid results means)
You can also use a little statistics on your pre reset dispertion times Vs post reset dispertion times to try and dial out simple run to run variability. If your a good driver you won't have to worry about that though.
It sounds like you've done a lot of quarter mile runs.
#70
Join Date: Feb 2004
Location: South
Posts: 3,671
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by JKWright
So you'd prefer I and the other "newbies" like GeeWillikers left because we disagree with you? I may have to take back my thumbs up and point it sideways instead at Russell, aka He Who Asks You to Leave if You Disagree with Him Even if Your Opinion is Based on Real-World Experience.
C'mon now, you're better than that. And really, that newbie line is getting old. I've owned VQ35s longer than you have. Guaranteed. Does that make me more of an expert than you on this subject? Nope, no more than your off-center assertion that your February 2004 join date here makes your word law.
C'mon now, you're better than that. And really, that newbie line is getting old. I've owned VQ35s longer than you have. Guaranteed. Does that make me more of an expert than you on this subject? Nope, no more than your off-center assertion that your February 2004 join date here makes your word law.
I owned a VQ since 1996, and many different varieties of VQs as well.
![Smilie](https://g35driver.com/forums/images/smilies/smile.gif)
#71
Join Date: Feb 2004
Location: South
Posts: 3,671
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by LuXXXz
so to reset the ecu i should just disconnect the positive clamp fromt he battery for like 12hours or what?? and then another question is how do i drive the car after the ecu reset?? just normaly or get on it a little cmon people i got ****ty gas mileage i need all the help i can get ![Confused](https://g35driver.com/forums/images/smilies/confused.gif)
![Confused](https://g35driver.com/forums/images/smilies/confused.gif)
#72
#73
Florida G35 Club
iTrader: (2)
Join Date: Dec 2004
Location: So Calif / Utah
Posts: 1,457
Likes: 0
Received 0 Likes
on
0 Posts
Tony
I would think it would be nice if a post or a (sticky) could be made about this.
I believe a reset should be made after an install for many reasons.
My biggest question would be? Does the ECU resort back to the best Map" If the conditions are right? I did notice that after I installed the crawford headers and cats my car seemed to have a few different personalties tell I did a reset. IM not sure if it helped but it seemed there may have been a change. After driving for many miles I did notice what seemed to be a good tune. A post about what the ECU can do and what It can't do would be good for a lot of people. I believe Nissan knows what they are doing. Like all of us we want the best.
I have many questions about the ECU.
My butt dyno has never been close to what a true dyno has produce. Pasta
I would think it would be nice if a post or a (sticky) could be made about this.
I believe a reset should be made after an install for many reasons.
My biggest question would be? Does the ECU resort back to the best Map" If the conditions are right? I did notice that after I installed the crawford headers and cats my car seemed to have a few different personalties tell I did a reset. IM not sure if it helped but it seemed there may have been a change. After driving for many miles I did notice what seemed to be a good tune. A post about what the ECU can do and what It can't do would be good for a lot of people. I believe Nissan knows what they are doing. Like all of us we want the best.
I have many questions about the ECU.
My butt dyno has never been close to what a true dyno has produce. Pasta
#74
Originally Posted by Hydrazine
If you have a OBDII scanner to read engine temps it would help greatly! The dash board indicator is useless for this application. Engine coolant temp is a very powerful variable on engine output.
Try to regulate to +/-2 deg F before each run.
Regulate everything as if you were doing a dyno comparison and you should get valid test results. (what ever valid results means)
You can also use a little statistics on your pre reset dispertion times Vs post reset dispertion times to try and dial out simple run to run variability. If your a good driver you won't have to worry about that though.
It sounds like you've done a lot of quarter mile runs.
Try to regulate to +/-2 deg F before each run.
Regulate everything as if you were doing a dyno comparison and you should get valid test results. (what ever valid results means)
You can also use a little statistics on your pre reset dispertion times Vs post reset dispertion times to try and dial out simple run to run variability. If your a good driver you won't have to worry about that though.
It sounds like you've done a lot of quarter mile runs.
#75