Can an ECU Reset make such a difference?
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Joined: Jul 2009
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From: Toronto
2014 Lotus Evora S
Can an ECU Reset make such a difference?
I removed my ECU last week to send it to Kleemann in Colorado Springs but because of the wild fires, I did not send it and put in back in my car. Surprisingly, the throttle has become much more responsive and the torque feels quite improved, even at low speed since I reconnected it. My wheels are now spinning when I take off from a stop if I'm not careful, something that has never happened unintentionally so far. The car has only 5000km and the tires are still like new. I'm assuming that this change in behavior is because the ECU has reset in the process, which improved responsiveness. But what a difference. I was thinking that the esp had a malfunction at first although everything looks like normal on the dashboard. Can the ECU reset make such a difference? Or is there anything wrong with my traction control?
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From: THE Orange County, California
2024 C8 Z06- 2025 BMW CS- 2022 Porsche 992 GTS
I removed my ECU last week to send it to Kleemann in Colorado Springs but because of the wild fires, I did not send it and put in back in my car. Surprisingly, the throttle has become much more responsive and the torque feels quite improved, even at low speed since I reconnected it. My wheels are now spinning when I take off from a stop if I'm not careful, something that has never happened unintentionally so far. The car has only 5000km and the tires are still like new. I'm assuming that this change in behavior is because the ECU has reset in the process, which improved responsiveness. But what a difference. I was thinking that the esp had a malfunction at first although everything looks like normal on the dashboard. Can the ECU reset make such a difference? Or is there anything wrong with my traction control?
On older AMG's you can do the ECU reset from in your car but it doesnt work on our models so what you did is the only way. I liken the ecu reset to something close to a sprint booster. The throttle response time is reduced and thus creates the appearance of more power. Its almost like taking the full throttle position and moving much closer. So when you normally would press your throttle and go rather quickly you are now going very quickly and of course all your TQ is coming in faster. But you didnt gain any power.
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FF. W212 E63 M156 non-pano 18" P2 ParkT NightV (gone but will be missed).
I hate that adaptive tranny thing!
So I guess now the only way to reset the ecu is to remove it for a while and then put it back in. That doesn't sound too difficult.
So how long was the ecu out of your car?--I assume it would be long enough for the capacitor to run out. I wonder if anyone knows how to remove the ecu from the M156 engine.
So I guess now the only way to reset the ecu is to remove it for a while and then put it back in. That doesn't sound too difficult.
So how long was the ecu out of your car?--I assume it would be long enough for the capacitor to run out. I wonder if anyone knows how to remove the ecu from the M156 engine.
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From: THE Orange County, California
2024 C8 Z06- 2025 BMW CS- 2022 Porsche 992 GTS
I hate that adaptive tranny thing!
So I guess now the only way to reset the ecu is to remove it for a while and then put it back in. That doesn't sound too difficult.
So how long was the ecu out of your car?--I assume it would be long enough for the capacitor to run out. I wonder if anyone knows how to remove the ecu from the M156 engine.
So I guess now the only way to reset the ecu is to remove it for a while and then put it back in. That doesn't sound too difficult.
So how long was the ecu out of your car?--I assume it would be long enough for the capacitor to run out. I wonder if anyone knows how to remove the ecu from the M156 engine.
But there is on the fly tuning now that you can plug into your ODBII and do the reset that way.
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From: Toronto
2014 Lotus Evora S
Thanks for the info Vic. I was told once that you could also reset the ECU by disconnecting the negative battery cable for 5-10 minutes (be sure the key isn't in the ignition when you do so), then reconnect. I never tried.
Hyperion, if you want to remove your ecu, watch this video provided by Mainly in a previous post.
http://www.youtube.com/watch?feature...&v=KaM86MfhBmI
He warned that the two clips in the back may be harder to free than it looks on the video. You need to pull straight up for those 2 to disengage. Although I didn't try it as I said, removing a battery cable might be simpler.
Hyperion, if you want to remove your ecu, watch this video provided by Mainly in a previous post.
http://www.youtube.com/watch?feature...&v=KaM86MfhBmI
He warned that the two clips in the back may be harder to free than it looks on the video. You need to pull straight up for those 2 to disengage. Although I didn't try it as I said, removing a battery cable might be simpler.
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From: THE Orange County, California
2024 C8 Z06- 2025 BMW CS- 2022 Porsche 992 GTS
Thanks for the info Vic. I was told once that you could also reset the ECU by disconnecting the negative battery cable for 5-10 minutes (be sure the key isn't in the ignition when you do so), then reconnect. I never tried.
Hyperion, if you want to remove your ecu, watch this video provided by Mainly in a previous post.
http://www.youtube.com/watch?feature...&v=KaM86MfhBmI
He warned that the two clips in the back may be harder to free than it looks on the video. You need to pull straight up for those 2 to disengage. Although I didn't try it as I said, removing a battery cable might be simpler.
Hyperion, if you want to remove your ecu, watch this video provided by Mainly in a previous post.
http://www.youtube.com/watch?feature...&v=KaM86MfhBmI
He warned that the two clips in the back may be harder to free than it looks on the video. You need to pull straight up for those 2 to disengage. Although I didn't try it as I said, removing a battery cable might be simpler.
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FF. W212 E63 M156 non-pano 18" P2 ParkT NightV (gone but will be missed).
MBWorld Fanatic!
Joined: Nov 2010
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FF. W212 E63 M156 non-pano 18" P2 ParkT NightV (gone but will be missed).
Finally got to disconnect the negative terminal this weekend for approximately 6 hours or so. Not sure if it makes a difference but I opened a door and then closed it to make sure the alarm stays off before I disconnect the negative terminal.
So I got to drive it this morning, and I think it works! The car seems more responsive. But I will have to see how it's like this weekend. Overall, MB should just disable adaptive tranny on AMG cars, or at least have an option to disable it. Maybe I should just put in a switch that I can flip daily to disconnect the negative terminal overnight.
So I got to drive it this morning, and I think it works! The car seems more responsive. But I will have to see how it's like this weekend. Overall, MB should just disable adaptive tranny on AMG cars, or at least have an option to disable it. Maybe I should just put in a switch that I can flip daily to disconnect the negative terminal overnight.
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Joined: Jul 2009
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From: Toronto
2014 Lotus Evora S
So I got to drive it this morning, and I think it works! The car seems more responsive. But I will have to see how it's like this weekend. Overall, MB should just disable adaptive tranny on AMG cars, or at least have an option to disable it. Maybe I should just put in a switch that I can flip daily to disconnect the negative terminal overnight.
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FF. W212 E63 M156 non-pano 18" P2 ParkT NightV (gone but will be missed).
Hopefully it's not placebo effect for me.
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From: Edmonton alberta, canada.
Porsche 991 GT3, 2012 cls63 Kleemann K3
Did you disconnect both batteries? If I remember correctly, I believe the 5.5TT has two batteries (with the second battery possibly in the trunk) due to the eco mode's repeated starting. My car has the M156 (6.2) with only one battery for me to disconnect.
Hopefully it's not placebo effect for me.
Hopefully it's not placebo effect for me.
batteries?
no, i just discnnected the ECU for about 10 minutes, then plugged it back in.
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FF. W212 E63 M156 non-pano 18" P2 ParkT NightV (gone but will be missed).
