90mm throttle body Install Q & A
MBWorld Fanatic!
Joined: Dec 2011
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From: Florida
A Merc
Thread Starter
Member
Joined: Apr 2015
Posts: 160
Likes: 8
From: Toronto, Ontario, Canada
2006 CLS55 AMG
Yes I know that and have seen it on a few cars with the bigger than 80mm
Is running very lean st that point and is going to a diff map
Restarting the car sets it right again but will get set off again while driving and that's where it can get dangerous because without knowing you can get lean and punch it and boom
The reset procedure you posted on top will work for resyncing the tb but won't help in your instance
This is a tune issue and many threads have been written about it as well
(I will post them up)
Some ECUs just don't like a bigger tb than 80mm, nothing to do with year or model so it's hard to pinpoint and you have to work diligently with your tuner to try to fix it
Denroll tried for a long time and still couldn't get it
The tuners have to find the reasoning why the ecu flips to another map
Is running very lean st that point and is going to a diff map
Restarting the car sets it right again but will get set off again while driving and that's where it can get dangerous because without knowing you can get lean and punch it and boom
The reset procedure you posted on top will work for resyncing the tb but won't help in your instance
This is a tune issue and many threads have been written about it as well
(I will post them up)
Some ECUs just don't like a bigger tb than 80mm, nothing to do with year or model so it's hard to pinpoint and you have to work diligently with your tuner to try to fix it
Denroll tried for a long time and still couldn't get it
The tuners have to find the reasoning why the ecu flips to another map
Regarding the different maps, is there no way of removing all other maps BUT the tuned map? That way there is no resorting back to some other random map?
I may have to spend some time at Eurocharged Canada in conjunction with Jerry in Texas. I'd like to be able to deal with him directly since he's got the most experience tuning these cars.
Junior Member
Joined: Jun 2015
Posts: 56
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From: Oregon
06 E55
Did you ever scan to see what code you are getting? I keep getting p202b-002 idle speed control implausible short circuit to ground or open circuit.
i have pulled the SC twice and installed new gaskets each time. Ensured there are no leaks anywhere. Checked the harness about 5 times and even had someone else check the harness for a second set of eyes. Bought 2 90mm bbk throttle bodies with no luck.
Using star tar they will give you things to check if you click the code. Basically it had me check the pots in the TB and both were within tolarence in both idle and wot positions.
Hulk if you don't mind me asking who do you have tune the car?
i have pulled the SC twice and installed new gaskets each time. Ensured there are no leaks anywhere. Checked the harness about 5 times and even had someone else check the harness for a second set of eyes. Bought 2 90mm bbk throttle bodies with no luck.
Using star tar they will give you things to check if you click the code. Basically it had me check the pots in the TB and both were within tolarence in both idle and wot positions.
Hulk if you don't mind me asking who do you have tune the car?
MBWorld Fanatic!
Joined: Dec 2011
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From: Florida
A Merc
Wot is not the issue
It's at half throttle etc
If you read the threads I posted it will be clear it's not about wot
It's at part throttle and not many tune for that
I would seriously suggest getting logging equipment or at at least an afr gauge
It's at half throttle etc
If you read the threads I posted it will be clear it's not about wot
It's at part throttle and not many tune for that
I would seriously suggest getting logging equipment or at at least an afr gauge
Thread Starter
Member
Joined: Apr 2015
Posts: 160
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From: Toronto, Ontario, Canada
2006 CLS55 AMG
if so, i wonder if Eurocharged can apply your tune file to my car... I wonder if that will work?
Junior Member
Joined: Jun 2015
Posts: 56
Likes: 1
From: Oregon
06 E55
I understand that it's not a wot problem as it's throwing a idle code but in order to check the pots you have to sweep them to ensure they have the same resistance values through the sweep.
i wonder if it has to do with ecu? Maybe try another ecu?
i wonder if it has to do with ecu? Maybe try another ecu?
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MBWorld Fanatic!
Joined: Dec 2011
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From: Florida
A Merc
Isn't that what I said?
It's an ecu issue however it's not related to one specific year or more it's at random
So you might change the ecu and get lucky that it works or be at the same point
What is needed is a deeper coding and unfortunately we are dealing with a 15 year old ecu
Who wants to spend the time and money to do that? Not many
It's an ecu issue however it's not related to one specific year or more it's at random
So you might change the ecu and get lucky that it works or be at the same point
What is needed is a deeper coding and unfortunately we are dealing with a 15 year old ecu
Who wants to spend the time and money to do that? Not many
Thread Starter
Member
Joined: Apr 2015
Posts: 160
Likes: 8
From: Toronto, Ontario, Canada
2006 CLS55 AMG
Isn't that what I said?
It's an ecu issue however it's not related to one specific year or more it's at random
So you might change the ecu and get lucky that it works or be at the same point
What is needed is a deeper coding and unfortunately we are dealing with a 15 year old ecu
Who wants to spend the time and money to do that? Not many
It's an ecu issue however it's not related to one specific year or more it's at random
So you might change the ecu and get lucky that it works or be at the same point
What is needed is a deeper coding and unfortunately we are dealing with a 15 year old ecu
Who wants to spend the time and money to do that? Not many
Junior Member
Joined: Jun 2015
Posts: 56
Likes: 1
From: Oregon
06 E55
Hey man do you mind grabbing the part number off your ecu? I've been told there are about 6 different ecus and I'm wondering if it has to do with the part numbers. Stab in the dark I guess.
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From: Long Island New York
2003 SL55,2020 GTC ,2017 GTS sold ,2002 G500 Sold,2003 SL500 Sold,
If you want to use another ECU to try to solve your problem you have to get one that has the same exact part number as yours ,then have it " unlocked" then have MB code it to your car ,online with Germany ,at least that's what I had to do, there maybe another way I'm certainly not a know it all with computers ,just don't want you to buy a used ECU that will never work,I have an SL55 and the second ECU I got was out of an E55 , good luck
