Graphic throttle body info
MBWorld Fanatic!
Joined: Jan 2009
Posts: 7,659
Likes: 67
From: Atlanta
2006 E55 AMG
My car to is starting to exhibit this issue at traffic lights and idle. What mine does is the following:
Come to a stop or slow role
After a few seconds the tb starts to close
Idle drops and car will cut out or to try correct itself the car surges up to 1500rpms
At that point codes are thrown
These symptons are only under vacume and I have 1000cc inj, e85, bip tune, 82mm tb, 3000 stall, 3.06 gears with clk55 tcu etc.........
Come to a stop or slow role
After a few seconds the tb starts to close
Idle drops and car will cut out or to try correct itself the car surges up to 1500rpms
At that point codes are thrown
These symptons are only under vacume and I have 1000cc inj, e85, bip tune, 82mm tb, 3000 stall, 3.06 gears with clk55 tcu etc.........
Senior Member
Joined: Apr 2012
Posts: 437
Likes: 1
From: Central PA
'05 E55
Not to derail this thread, but I am interested and can't find a credible answer as to whether in these cars, the ECU does open-loop at WOT?
There are lambda tables that appear to have settings/adjustments the whole way across the load/RPM range. Does it even matter at WOT/high-load because ECU goes open-loop.
The stock O2-sensors are not widedband, nor are they fast enough to matter, IMHO.
Any insights appreciated.
There are lambda tables that appear to have settings/adjustments the whole way across the load/RPM range. Does it even matter at WOT/high-load because ECU goes open-loop.
The stock O2-sensors are not widedband, nor are they fast enough to matter, IMHO.
Any insights appreciated.
Member
Joined: Oct 2012
Posts: 230
Likes: 1
From: Santa Monica
2005 e55
Not to derail this thread, but I am interested and can't find a credible answer as to whether in these cars, the ECU does open-loop at WOT?
There are lambda tables that appear to have settings/adjustments the whole way across the load/RPM range. Does it even matter at WOT/high-load because ECU goes open-loop.
The stock O2-sensors are not widedband, nor are they fast enough to matter, IMHO.
Any insights appreciated.
There are lambda tables that appear to have settings/adjustments the whole way across the load/RPM range. Does it even matter at WOT/high-load because ECU goes open-loop.
The stock O2-sensors are not widedband, nor are they fast enough to matter, IMHO.
Any insights appreciated.
yes the car goes into open loop under WOT and has a set a/f ratio in Open loop. every fuel injection car pretty much does open loop upon WOT.. Closed loop is for cruising, emissions, MPG unless it has a wide- band closed loop option.. Only stand alones at this time
Member
Joined: Oct 2012
Posts: 230
Likes: 1
From: Santa Monica
2005 e55
I completely Agree. I had a Kleemann tune with 80mm TB tried to pass emissions and car was pig rich at idle. well after datalogging, I find out my Kleemann tune was staying in open loop (25 sec)after decel from 2500rpm to idle and dumping fuel.. then would correct itself once it went back into closed loop..
I then installed with no other changes a Eurocharged tune. the open loop to closed loop transition changed from (25sec) with the kleemann tune to (5sec) with eurocharged tune and was able to pass ca emission 2 weeks ago with just rear cats.
Banned
Joined: Apr 2012
Posts: 668
Likes: 2
From: Racine, WI
2003 E55 AMG
Does anybody know if ECU's could be swapped from let say a sl55 with the 80mm TB to our e55's? Would this 1) be possible? 2) maybe it could fix this issue since it was made to work with the 80mm tb.
Senior Member
Joined: Feb 2012
Posts: 299
Likes: 1
From: London
2004 E55K AMG Wagon
From what I understand you cannot use an SL55 ECU but you can use a CLS some of which came with an 80mm TB. However as OP said none came with 82mm.
Banned
Joined: Apr 2012
Posts: 668
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From: Racine, WI
2003 E55 AMG
Just thinking if the ecu had different programming already on it for the 80, the 82 would not make as big a difference. Considering our ecu was programmed originally with a 74mm on the car. Not sure this would work, and I'm sure an ECU would be hard to find and very expensive to buy new to try out
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MBWorld Fanatic!
Joined: May 2011
Posts: 1,109
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From: Las Vegas, NV
1000Hp Diesel Trucks, 2019 E63s
Just thinking if the ecu had different programming already on it for the 80, the 82 would not make as big a difference. Considering our ecu was programmed originally with a 74mm on the car. Not sure this would work, and I'm sure an ECU would be hard to find and very expensive to buy new to try out
Thread Starter
Member
Joined: Feb 2003
Posts: 80
Likes: 0
From: Buford GA
2005 E55
Yes. That is a great thought on the other ecu.
I have figured out...that when the car acts up, the ecu has seen an implausable figure from the map sensor. It goes into a "save the catalytiic converter" mode and plugs in a pre-determined value that would work for the stock set up. But modded, runs lean as ****. Until you restart
I have figured out...that when the car acts up, the ecu has seen an implausable figure from the map sensor. It goes into a "save the catalytiic converter" mode and plugs in a pre-determined value that would work for the stock set up. But modded, runs lean as ****. Until you restart
Banned
Joined: Apr 2012
Posts: 668
Likes: 2
From: Racine, WI
2003 E55 AMG
Yes. That is a great thought on the other ecu.
I have figured out...that when the car acts up, the ecu has seen an implausable figure from the map sensor. It goes into a "save the catalytiic converter" mode and plugs in a pre-determined value that would work for the stock set up. But modded, runs lean as ****. Until you restart
I have figured out...that when the car acts up, the ecu has seen an implausable figure from the map sensor. It goes into a "save the catalytiic converter" mode and plugs in a pre-determined value that would work for the stock set up. But modded, runs lean as ****. Until you restart
Do you know where to get a 80mm tb CLS ecu??? I assume they are alot of money from MB. Maybe somebody has one from a junk car
Super Member
Joined: Mar 2011
Posts: 502
Likes: 0
From: Porter Ranch, CA
E55, CTS-V Wagon, Duc 1098R
You can't plug in any ECU since they are vin coded. A tune from an SLR would be good considering its pullied, got a big TB, headers, and cams, I would have to think it would be the best option for us and would have more range on the map sensor.
Last edited by adianaty; Jun 8, 2013 at 12:39 AM.
Banned
Joined: Apr 2012
Posts: 668
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From: Racine, WI
2003 E55 AMG
So, I'm doing more research on the ECU's. Did you guys know there were apparently 4 different part #'s for the ECU's on the e55's. Maybe this would explain why others with the exact same mods have no issues at all and other do? Here are the part #'s I found and the link to where I found them: http://www.mercedesecm.com/e55-ecm.html
A1121534479
A1131532579
A1131533979
A1131536079
Not sure which I have but I'm going to check in the morning and will post it. Maybe others with the issue can post theirs and we will see if we all have the same ECU. Then if some with the 82's that are working flawlessly have different part #'ed ECUs we may be on to something there.
A1121534479
A1131532579
A1131533979
A1131536079
Not sure which I have but I'm going to check in the morning and will post it. Maybe others with the issue can post theirs and we will see if we all have the same ECU. Then if some with the 82's that are working flawlessly have different part #'ed ECUs we may be on to something there.
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Joined: May 2011
Posts: 1,109
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From: Las Vegas, NV
1000Hp Diesel Trucks, 2019 E63s
You can't plug in any ECU since they are vin coded. But I have asked Jerry to send me a tune from an SLR and considering its pullied, got a big TB, headers, and cams, I would have to think it would be the best option for us and would have more range on the map sensor. Hopefully he will send it over.
Banned
Joined: Apr 2012
Posts: 668
Likes: 2
From: Racine, WI
2003 E55 AMG
You can't plug in any ECU since they are vin coded. But I have asked Jerry to send me a tune from an SLR and considering its pullied, got a big TB, headers, and cams, I would have to think it would be the best option for us and would have more range on the map sensor. Hopefully he will send it over.
I would think the tuners should be able to do this too, as well as any dealer, probably done with star??
Super Member
Joined: Mar 2011
Posts: 502
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From: Porter Ranch, CA
E55, CTS-V Wagon, Duc 1098R
MBWorld Fanatic!
Joined: Sep 2002
Posts: 1,719
Likes: 12
From: West
2005 E55 Wagon
I had the same exact issues as all of you with the bigger TB, then Ali D suggested the below to me. So far so good, after about 2 weeks doing this:
If you have star, Go to ME-SFI, control unit adaptations, learning processes, default initialization.
Once you start it, you should hear your fan go on real quick. This clears ALL of the adaptations and will let the car reset correctly.
If you have star, Go to ME-SFI, control unit adaptations, learning processes, default initialization.
Once you start it, you should hear your fan go on real quick. This clears ALL of the adaptations and will let the car reset correctly.
Last edited by jcjmw; Jun 8, 2013 at 01:20 PM.
Super Member
Joined: Mar 2011
Posts: 502
Likes: 0
From: Porter Ranch, CA
E55, CTS-V Wagon, Duc 1098R
^^^^ Seemed to work with the first 90mm TB but it crapped out. Now on the second one and can't get it to go away. Few more things to try before I find a cliff and break the 1/4 mile record by free falling the car.
Last edited by adianaty; Jun 8, 2013 at 01:26 PM.
Super Member
Joined: Mar 2011
Posts: 502
Likes: 0
From: Porter Ranch, CA
E55, CTS-V Wagon, Duc 1098R
Haha. I guess that means you will be living vicariously through me, again...
Thanks brotha. Promised myself that I won't mod it until the E55 is running like a swiss watch. Its really been hard to keep the wrenches off of it since they respond so well to mods. But lets just say I'm in the accumulation stage of the mods. I think my garage is good for an easy 250hp bump on that thing
.
Thanks brotha. Promised myself that I won't mod it until the E55 is running like a swiss watch. Its really been hard to keep the wrenches off of it since they respond so well to mods. But lets just say I'm in the accumulation stage of the mods. I think my garage is good for an easy 250hp bump on that thing
.
