I could feel the difference too, it pulls more in the top end.
AMG63 R&D #1 (Free 18 RWHP)
Member
Joined: Mar 2009
Posts: 188
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From: Richmond Hill, Ontario, Canada
AMG C63, Merc C230, Audi A3
So did the ecu reset it self? I have asked this before in a previous thread and no body replied. I am currently running K&N's with the charcoal filters in place, because I threw a CEL for the same reason "running lean" when I took out the charcoal filters.
I want to make sure the ecu will reset it self if I take out the charcoal filters and only run the K&N's!!! Can someone please help me
Thanks
I want to make sure the ecu will reset it self if I take out the charcoal filters and only run the K&N's!!! Can someone please help me
Thanks
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Slow
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From: ny
2019 s560 sedan
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From: Richmond Hill, Ontario, Canada
AMG C63, Merc C230, Audi A3
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Slow
I thought the same thing, I was just worried about possible damage to the engine by running it lean. I know these mercedes engines are pretty picky from what I can see.
Thanks
Registered User
Joined: Mar 2008
Posts: 1,167
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From: ny
2019 s560 sedan
codes coming up are fuel trim error bank 1 and bank 2 . meaning both intake boxes
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From: Norte America
MBUSA
from what i have heard running a car too lean has less risk of blowing a motor . This is coming from Ford guys so who knows lol . Also i reset the cpu today and once i got over 120 the light kicked back on . i think its because i have the air baffles opened up and im just getting too much air flow because under normal driving it does not kick the cel on .
codes coming up are fuel trim error bank 1 and bank 2 . meaning both intake boxes
codes coming up are fuel trim error bank 1 and bank 2 . meaning both intake boxes
Member
Joined: Mar 2009
Posts: 188
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From: Richmond Hill, Ontario, Canada
AMG C63, Merc C230, Audi A3
I've got my ODB2 tool yesterday and decided to try it again. First couple of hours - OK. Then as soon as I thought that I may be did something wrong first time - CEL. Same error codes about running lean, I can post full error report later. Cleared error, install stock paper filter with no charcoal - NO CEL.
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Joined: Mar 2009
Posts: 188
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From: Richmond Hill, Ontario, Canada
AMG C63, Merc C230, Audi A3
CEL DETAILS
On
Diagnostic Trouble Codes
Generic Powertrain
P0171 System Too Lean (Bank 1)
P0174 System Too Lean (Bank 2)
Freeze Frame for DTC 171
Fuel System Status Bank One
Closed Loop
Fuel System Status Bank Two
Closed Loop
Calculated Load
19
%
Coolant Temperature
181
F
Short Term Fuel Trim Bank One
9.36
%
Long Term Fuel Trim Bank One
-11.70
%
Short Term Fuel Trim Bank Two
8.58
%
Long Term Fuel Trim Bank Two
-11.70
%
Fuel Pressure
51.76
psig
Intake Manifold Absolute Pressure
8.9
in.hg
Engine RPM
610
r/min
Vehicle Speed
0
MPH
Ignition Timing Advance for #1
12.0
deg
Intake Air Temperature
104
F
Air Flow Rate From Mass Air Flow Sensor
0.61
lb/min
Absolute Throttle Position
12
%
Enhanced Powertrain CAN
0745 Self-Adaptation Of Mixture Formation For Right Bank Of Cylinders Is At Liwith Value (At Idle Speed).Self-Adaptation Of Mixture Formation For Enrichment At Idle For The Right Cylinder Bank Is Above The Permissible Limit. (P0171)
2091 SummenError Der Selbstanpassung, Rechte Cylinderreihe
0749 Self-Adaptation Of Mixture Formation For Enrichment At Idle For The Left Cylinder Bank Is Above The Permissible Limit. (P0174)
2095 SummenError Der Selbstanpassung, Linke Cylinderreihe
Diagnostic Trouble Codes
Generic Powertrain
P0171 System Too Lean (Bank 1)
P0174 System Too Lean (Bank 2)
Freeze Frame for DTC 171
Fuel System Status Bank One
Closed Loop
Fuel System Status Bank Two
Closed Loop
Calculated Load
19
%
Coolant Temperature
181
F
Short Term Fuel Trim Bank One
9.36
%
Long Term Fuel Trim Bank One
-11.70
%
Short Term Fuel Trim Bank Two
8.58
%
Long Term Fuel Trim Bank Two
-11.70
%
Fuel Pressure
51.76
psig
Intake Manifold Absolute Pressure
8.9
in.hg
Engine RPM
610
r/min
Vehicle Speed
0
MPH
Ignition Timing Advance for #1
12.0
deg
Intake Air Temperature
104
F
Air Flow Rate From Mass Air Flow Sensor
0.61
lb/min
Absolute Throttle Position
12
%
Enhanced Powertrain CAN
0745 Self-Adaptation Of Mixture Formation For Right Bank Of Cylinders Is At Liwith Value (At Idle Speed).Self-Adaptation Of Mixture Formation For Enrichment At Idle For The Right Cylinder Bank Is Above The Permissible Limit. (P0171)
2091 SummenError Der Selbstanpassung, Rechte Cylinderreihe
0749 Self-Adaptation Of Mixture Formation For Enrichment At Idle For The Left Cylinder Bank Is Above The Permissible Limit. (P0174)
2095 SummenError Der Selbstanpassung, Linke Cylinderreihe
Senior Member
Joined: Feb 2009
Posts: 280
Likes: 8
From: Sarasota FL
2020 E450 Wagon
Any luck with your fuel trim faults.
By the look of the freeze frame data, the computer is correcting (taking fuel away) more in the upper ranges than adding at idle. We have found that a fuel trim code set at idle may be caused by a fault at part/full load. The computer can adjust the fuel trim in only one direction. If the computer sees an over rich condition at part load, it will move the fuel curve lean through out the whole range. That can cause the lean condition at idle. The real question is why is the mixture so rich at part-full load. Is the the mass air sensor seeing a large increase in air flow with the carbon filters removed and K&N's installed?
By the look of the freeze frame data, the computer is correcting (taking fuel away) more in the upper ranges than adding at idle. We have found that a fuel trim code set at idle may be caused by a fault at part/full load. The computer can adjust the fuel trim in only one direction. If the computer sees an over rich condition at part load, it will move the fuel curve lean through out the whole range. That can cause the lean condition at idle. The real question is why is the mixture so rich at part-full load. Is the the mass air sensor seeing a large increase in air flow with the carbon filters removed and K&N's installed?
Super Member
Joined: Apr 2006
Posts: 796
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From: Raleigh NC
2007 E63, 2006 C55
RE: Filter Mods
I removed my charcoal filters, replaced the (dirty) air filters with new OEM Mann units, and did the ECU reset.
My car runs noticably better across the RPM range, and pulls very hard to redline. No CEL or drivability issues at all.
This simple mod really woke up my car, for all of $26 for new air filters and about 15 minutes of time.
While I have not tried them, I think K&N may be overkill; clean stock filters appear to flow more than enough air for a stock engine.
My car runs noticably better across the RPM range, and pulls very hard to redline. No CEL or drivability issues at all.
This simple mod really woke up my car, for all of $26 for new air filters and about 15 minutes of time.
While I have not tried them, I think K&N may be overkill; clean stock filters appear to flow more than enough air for a stock engine.
Senior Member
Joined: Feb 2009
Posts: 280
Likes: 8
From: Sarasota FL
2020 E450 Wagon
I don't care much for K&Ns. I once had one in a 535I. The outer rubber support melted and left the engine unprotected. Thats a bad thing down here. Florida is a big sand pile. I might use one in a race car but not on the street.
Senior Member
Joined: Feb 2008
Posts: 450
Likes: 0
From: el clinico magnifico
E63, S550
For those with lean A/F, just make sure you closed the airbox correctly. When I changed the stock filters I thought I closed the airbox tight but then I noticed pinging under load when I took it out for a drive.
I opened the hood and saw nothing wrong. The boxes looked fully closed and nothing was being squeezed. However, when I removed the lid on the airbox I saw that the part of the rubber/foam on the edge of the filter was pinched by the air box and the air box cover.
After seating it correctly the pinging went away. However, I never had a CEL with the pinging
I opened the hood and saw nothing wrong. The boxes looked fully closed and nothing was being squeezed. However, when I removed the lid on the airbox I saw that the part of the rubber/foam on the edge of the filter was pinched by the air box and the air box cover.
After seating it correctly the pinging went away. However, I never had a CEL with the pinging
Member
Joined: Mar 2009
Posts: 188
Likes: 0
From: Richmond Hill, Ontario, Canada
AMG C63, Merc C230, Audi A3
For those with lean A/F, just make sure you closed the airbox correctly. When I changed the stock filters I thought I closed the airbox tight but then I noticed pinging under load when I took it out for a drive.
I opened the hood and saw nothing wrong. The boxes looked fully closed and nothing was being squeezed. However, when I removed the lid on the airbox I saw that the part of the rubber/foam on the edge of the filter was pinched by the air box and the air box cover.
After seating it correctly the pinging went away. However, I never had a CEL with the pinging
I opened the hood and saw nothing wrong. The boxes looked fully closed and nothing was being squeezed. However, when I removed the lid on the airbox I saw that the part of the rubber/foam on the edge of the filter was pinched by the air box and the air box cover.
After seating it correctly the pinging went away. However, I never had a CEL with the pinging
Junior Member
Joined: Dec 2009
Posts: 67
Likes: 0
E 63 amg
Hi guys, i did remove the charcoal filter and drove around for 4-5 days with old air filter NO ECL then the K&N filter arrive and replace the old arif ilter and drove for about 50 miles and ECL came on. What do i do now?? replace the K%N with OEm filter or put back charcoal back in???
Senior Member
Joined: Feb 2008
Posts: 450
Likes: 0
From: el clinico magnifico
E63, S550
Hi guys, i did remove the charcoal filter and drove around for 4-5 days with old air filter NO ECL then the K&N filter arrive and replace the old arif ilter and drove for about 50 miles and ECL came on. What do i do now?? replace the K%N with OEm filter or put back charcoal back in???
Replace the K&N with new stock filters and then reset the ECU. The CEL should go away after this.
Senior Member
Joined: Feb 2008
Posts: 450
Likes: 0
From: el clinico magnifico
E63, S550
The instructions are in this thread https://mbworld.org/forums/w211-amg/...set-works.html
The Search button is your friend
The Search button is your friend
Member
Joined: Nov 2008
Posts: 221
Likes: 9
From: Florida
CL63, 2014 ML63, 2008 ML63, R500, GLK
Take the KN's out. Put back your stock filters minus the charcoal ones. The MAF is faulting because of the K&N's. Its happened to me a bunch of times in different cars. Your engine light will go away after a couple of days of driving.
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Joined: Jul 2009
Posts: 1,347
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From: Dallas, TX
2007 E63, 2005 Dodge Ram Hemi
They actually have an entirely different upper airbox in the Euro models. Flows a lot more air and doesn't have the plastic lattice under the charcoal's, but they don't actually have charcoals...
