WOW ECU reset!

speed doc · 06-24-2009, 10:53 AM

I was reading a thread on here about cars feeling a little sluggish and that resetting the ECU would help. Well I did the ECU reset protocol yesterday and wow it awoke the beast! I drive my car in trafffic regularly so I guess it got trained into slow poke mode. It feels like a different car, crisp throttle response, revs faster, etc. I'm just amazed. This forum is a wealth of great knowledge. Thanks Guys.

Here is the sequence just in case anyone is interested.

1. Turn the ignition key to the on (not start) position.

2. Press the gas pedal to the floor and hold for five seconds.

3. Turn the key to the "off" position (don't remove the key), then release the gas pedal.

4. Wait at least two minutes for ECU to reset.

Enjoy!!!!

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bigben320e · 06-24-2009, 11:22 AM

Quote:

Originally Posted by speed doc

I was reading a thread on here about cars feeling a little sluggish and that resetting the ECU would help. Well I did the ECU reset protocol yesterday and wow it awoke the beast! I drive my car in trafffic regularly so I guess it got trained into slow poke mode. It feels like a different car, crisp throttle response, revs faster, etc. I'm just amazed. This forum is a wealth of great knowledge. Thanks Guys.

Here is the sequence just in case anyone is interested.

1. Turn the ignition key to the on (not start) position.

2. Press the gas pedal to the floor and hold for five seconds.

3. Turn the key to the "off" position (don't remove the key), then release the gas pedal.

4. Wait at least two minutes for ECU to reset.

Enjoy!!!!

I will try this out. Do you have a close-up on those rims? I would like to see one.

BTW- What a coincidence, you drive a SL55, and have 55 posts on here! LOL.

speed doc · 06-24-2009, 11:34 AM

Sure, I'll dig some up. They are 20 inch MHT LLC'S. Great wheel and very strong and durable so far.

Sunir · 06-24-2009, 12:11 PM

I gotta try this...people have been raving about this on the W211 E55 forum!

IngenereAMG · 06-24-2009, 12:27 PM

What you are resetting with this procedure, is actually the throttle bodies. This tends to help responsiveness.

Rock on!

speed doc · 06-24-2009, 01:01 PM

That makes sense Dino because the car feels incredibly more responsive.

FLSL55 · 06-24-2009, 01:33 PM

You turn the key one click or two?

speed doc · 06-24-2009, 01:50 PM

One click or just before it goes to the starter position.

Brent72 · 06-24-2009, 01:56 PM

Thank you for this piece of info. I'll definitely be trying it out on my 55.

FLSL55 · 06-24-2009, 01:57 PM

What do you mean by the starter position? Do you mean the car will start? Or do you mean the second click is the starter position and the third is the car actually starting.

speed doc · 06-24-2009, 03:19 PM

The position just before you start the car ( the position the key is in when the car is running, that may be a better explanation) Hope that helps.

FLSL55 · 06-24-2009, 03:24 PM

Maybe you should update the original post to say the second click.

sjcsl55 · 06-24-2009, 06:02 PM

Position 0 is the "off" position, position 1 is the "acc" position for accessories, position 2 is the "on" position, when the car is in use, and position 3 is the "start" position, used when starting the car.

G_KATS · 06-25-2009, 02:10 AM

if i do this, will it reset my KM for service A back to zero ???

sjcsl55 · 06-25-2009, 03:13 AM

Quote:

Originally Posted by G_KATS

if i do this, will it reset my KM for service A back to zero ???

no, it only affects the throttle response part of the ECU... resetting your service timer is done using a different procedure.

cal1 · 06-25-2009, 06:08 PM

Quote:

Originally Posted by IngenereAMG

What you are resetting with this procedure, is actually the throttle bodies. This tends to help responsiveness.

Rock on!

Would this make sense to do on a modded ECU? I'm running an 80mm TB also.

G_KATS · 06-26-2009, 03:27 AM

i tried doing this today and nothing came up ....??? i drove the car and it felt the same too me

does somthing show on the dash saying ECU reseted ??? let me know thanks !

jturkel · 06-26-2009, 03:45 AM

Quote:

Originally Posted by cal1

Would this make sense to do on a modded ECU? I'm running an 80mm TB also.

this is perfectly safe to do. it will not hurt anything. after about 250-300 shifts, your car learns your driving style and tends to shift and provide power the way that is most comparable to your driving style. this simply resets this and results in more raw shifts and better throttle response. i do this all the time on my car as to many many members here with modded cars.

Quote:

Originally Posted by G_KATS

i tried doing this today and nothing came up ....??? i drove the car and it felt the same too me

does somthing show on the dash saying ECU reseted ??? let me know thanks !

nothing shows up on the dash. at all.

EDIT: Holy Crap you guys.....sneaky ECU reset WORKS!!!

you will notice a difference. you can wait longer too. it works fine for me after 2 minutes. i used to wait 30 minutes until i found out 2 minutes works just fine.

FLSL55 · 06-26-2009, 12:17 PM

Jturkel,

Your method differs from all the others I have seen on this board including Speed Doc's on post #1 above.

cal1 · 06-26-2009, 12:20 PM

[quote=jturkel;3594054]this is perfectly safe to do. it will not hurt anything. after about 250-300 shifts, your car learns your driving style and tends to shift and provide power the way that is most comparable to your driving style. this simply resets this and results in more raw shifts and better throttle response. i do this all the time on my car as to many many members here with modded cars.

Thanks a bunch, I am going to give it a try. I had thought that because I generally drive like a madman or lets say "spirited" that it might not do much, but nothing to lose only to gain.

jturkel · 06-26-2009, 02:35 PM

Quote:

Originally Posted by FLSL55

Jturkel,

Your method differs from all the others I have seen on this board including Speed Doc's on post #1 above.

edited my post. it was late and i posted it in the wrong order. check out the link.

m4xm1l10n · 06-27-2009, 02:16 PM

Are this ECU Reset procedure stickily to the 55K Cars or to any MB cars ? I have the SL&S500
Thanks

jturkel · 06-27-2009, 02:20 PM

should be any car

laitsabr · 06-28-2009, 01:33 AM

Wow! It certainly worked on my 06 E500 wagon (stock).
Many thanks for giving me a "newer" car!

Fantasm · 06-28-2009, 11:30 AM

works for me as well, and used to work on my sl55 too.
i dont even wait the 2 minutes after wards. i turn it off, pull the key out, then put it back in and its done.

06-24-2009, 11:34 AM	#3
speed doc Junior Member Join Date: Apr 2008 Location: Atlanta, GA Posts: 68 Drives: 2008 SL55	Sure, I'll dig some up. They are 20 inch MHT LLC'S. Great wheel and very strong and durable so far. __________________

06-24-2009, 12:11 PM	#4
Sunir Super Member Join Date: May 2008 Location: Maryland Posts: 571 Drives: SL55 AMG	I gotta try this...people have been raving about this on the W211 E55 forum! __________________ 2003 SL55 AMG - Diamond Silver (Iridium) on charcoal & burlwood, bi-xenons, CCW 19"s, LET Stage I tune 12.03 @115 mph - stock w/ ecu flash only, 19" wheels & street tires - 10/30/09 Traded: 2003 SL500 R230. AMG Sport Package, black on black, Keyless go & bi-xenons.

06-24-2009, 12:27 PM	#5
IngenereAMG PREMIUM SPONSOR Join Date: Feb 2004 Location: Arizona Posts: 2,648 Drives: SL55AMG, Ferrari 348, Ferrari Testarossa, Ferrari F40, Ferrari Mondial t, Ducati 916, Indycar	What you are resetting with this procedure, is actually the throttle bodies. This tends to help responsiveness. Rock on! __________________ Ciao...Dino Aston Martin V8 Vantage SL55 AMG... delimited & 569hp/575ft lb tq Ferrari F40 (sold) Ferrari 348 Challenge... Tuned to 350 hp Ferrari Testarossa(sold) Ferrari Mondial t 87 March/Cosworth Indycar Ducati 916 BMW M3... tuned to 370 hp & delimited G500 (4sale) Mini Cooper S... tuned to 185 hp www.VelocePerformance.com

06-24-2009, 01:01 PM	#6
speed doc Junior Member Join Date: Apr 2008 Location: Atlanta, GA Posts: 68 Drives: 2008 SL55	That makes sense Dino because the car feels incredibly more responsive. __________________

06-24-2009, 01:50 PM	#8
speed doc Junior Member Join Date: Apr 2008 Location: Atlanta, GA Posts: 68 Drives: 2008 SL55	One click or just before it goes to the starter position. __________________

06-24-2009, 01:33 PM	#7
FLSL55 Senior Member Join Date: Nov 2001 Location: South Florida Posts: 450 Drives: SL55, RX7, RX400h	You turn the key one click or two?

06-24-2009, 01:56 PM	#9
Brent72 Member Join Date: Feb 2007 Posts: 91 Drives: SL55	Thank you for this piece of info. I'll definitely be trying it out on my 55.

06-24-2009, 01:57 PM	#10
FLSL55 Senior Member Join Date: Nov 2001 Location: South Florida Posts: 450 Drives: SL55, RX7, RX400h	What do you mean by the starter position? Do you mean the car will start? Or do you mean the second click is the starter position and the third is the car actually starting.

06-24-2009, 03:19 PM	#11
speed doc Junior Member Join Date: Apr 2008 Location: Atlanta, GA Posts: 68 Drives: 2008 SL55	The position just before you start the car ( the position the key is in when the car is running, that may be a better explanation) Hope that helps. __________________

06-24-2009, 03:24 PM	#12
FLSL55 Senior Member Join Date: Nov 2001 Location: South Florida Posts: 450 Drives: SL55, RX7, RX400h	Maybe you should update the original post to say the second click.

06-24-2009, 06:02 PM	#13
sjcsl55 Member Join Date: Jun 2009 Location: San Jose, CA Posts: 138 Drives: 04 SL55 AMG	Position 0 is the "off" position, position 1 is the "acc" position for accessories, position 2 is the "on" position, when the car is in use, and position 3 is the "start" position, used when starting the car.

06-25-2009, 02:10 AM	#14
G_KATS Senior Member Join Date: Jun 2007 Location: Toronto Ontario Canada Posts: 338 Drives: SL 55 AMG	if i do this, will it reset my KM for service A back to zero ???

06-26-2009, 03:27 AM	#17
G_KATS Senior Member Join Date: Jun 2007 Location: Toronto Ontario Canada Posts: 338 Drives: SL 55 AMG	i tried doing this today and nothing came up ....??? i drove the car and it felt the same too me does somthing show on the dash saying ECU reseted ??? let me know thanks !

06-26-2009, 12:17 PM	#19
FLSL55 Senior Member Join Date: Nov 2001 Location: South Florida Posts: 450 Drives: SL55, RX7, RX400h	Jturkel, Your method differs from all the others I have seen on this board including Speed Doc's on post #1 above. Last edited by FLSL55; 06-26-2009 at 12:24 PM.

06-26-2009, 12:20 PM	#20
cal1 Member Join Date: Feb 2009 Location: Indianapolis Posts: 128 Drives: SL55, ECU, Pulley, 80mm TB, Headers, 2nd Heat exchanger, phenolic spacers	[quote=jturkel;3594054]this is perfectly safe to do. it will not hurt anything. after about 250-300 shifts, your car learns your driving style and tends to shift and provide power the way that is most comparable to your driving style. this simply resets this and results in more raw shifts and better throttle response. i do this all the time on my car as to many many members here with modded cars. Thanks a bunch, I am going to give it a try. I had thought that because I generally drive like a madman or lets say "spirited" that it might not do much, but nothing to lose only to gain.

06-27-2009, 02:20 PM	#23
jturkel MBWorld Fanatic! Join Date: Oct 2006 Location: Scottsdale, AZ Posts: 3,688 Drives: 02 C32 AMG	should be any car __________________ \| 02 C32 AMG \| SL55 Intake w/K&Ns \| LET 185 Pulley \| LET Tune \| LET Heat Exchanger \| Eurocharged Headers \| \| Res Delete \| NGK IX Iridiums \| Magnecor KV85s \| NW Pulley Saver \| NW ISO Kit \| Valentine1 \| DashDyno SPD \| CF Trunk Lip \| Waiting Install: Next: fan, retune, tb

06-28-2009, 01:33 AM	#24
laitsabr Newbie Join Date: May 2009 Location: Seattle, WA Posts: 14 Drives: '06 E500 4Matic Wagon, '05 Crossfire SRT6 Roadster	Worked for me Wow! It certainly worked on my 06 E500 wagon (stock). Many thanks for giving me a "newer" car!

06-28-2009, 11:30 AM	#25
Fantasm MBWorld Fanatic! Join Date: May 2007 Location: Woodland Hills, CA Posts: 1,038 Drives: 2009 GTR	works for me as well, and used to work on my sl55 too. i dont even wait the 2 minutes after wards. i turn it off, pull the key out, then put it back in and its done. __________________ - 2009 Nissan GTR Gone: 2009 Mercedes SL63 AMG 2008 Porsche Cayenne GTS 2008 BMW 335i 2005 Mercedes E55 2008 Honda S2000 2007 Toyota FJ Cruiser 2007 Jeep SRT8 2004 Mercedes SL55 2004 BMW M3 2006 F150 KingRanch 1991 Nissan 300ZX TT 1990 Nissan 300ZX

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