63 And CEL P0171
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2010 Irridium Silver MB C63 AMG Sedan
I don't think your 100% accurate. I have K&N alone charcoal delete and NO ISSUES. I think you did not have them installed well and you did not grease properly. They do have to seat properly. Good luck and glad you have no CEL now but what a waste and shame that you can't use your K&Ns.
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2008 C63 ,2009 SL 63 AMG, 2011 SLS AMG
This happens sometimes in US spec cars. As the sensor in the intake requires leaner air. When you remove your charcoals, you will slightly have richer air entering the intake, and thus a CEL will pop up. IT all depends on what type of air box modification and the type of filters you use. Anyhow, with a proper tune, that problem is invincible.
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This happens sometimes in US spec cars. As the sensor in the intake requires leaner air. When you remove your charcoals, you will slightly have richer air entering the intake, and thus a CEL will pop up. IT all depends on what type of air box modification and the type of filters you use. Anyhow, with a proper tune, that problem is invincible.
A more free flowing intake can cause a lean state in the Air/Fuel mixture, because more air would enter the mixture. Adding fuel, can richen the mixture.
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Here is one for you guys...
Why then when I opened up BOTH my air boxes I only had right sight charcoal and an empty, open-up with no lattice to hold a charcoal airbox on the left? Anybody realize they only had one charcoal filter?
Why then when I opened up BOTH my air boxes I only had right sight charcoal and an empty, open-up with no lattice to hold a charcoal airbox on the left? Anybody realize they only had one charcoal filter?
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Just a mistake from the factory.
Edit: did you happen to notice if the actual airboxes had the same air inlet as each other, as in, were the ovals with the MAF's inside the same shape?
Last edited by SonnyakaPig; Oct 3, 2011 at 05:15 PM.
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My right side with the charcoal filter had the lattice and smaller hole and the right side(driver side) had no filter, no lattice, and larger hole! I think its a "FACTORY FREAK" (see older Propain and Jon threads)...LOL
So have no idea has this has been affecting my ECU and whether or not it has adapted or if my ECU was European Type??
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Very good question!
My right side with the charcoal filter had the lattice and smaller hole and the right side(driver side) had no filter, no lattice, and larger hole! I think its a "FACTORY FREAK" (see older Propain and Jon threads)...LOL
So have no idea has this has been affecting my ECU and whether or not it has adapted or if my ECU was European Type??
My right side with the charcoal filter had the lattice and smaller hole and the right side(driver side) had no filter, no lattice, and larger hole! I think its a "FACTORY FREAK" (see older Propain and Jon threads)...LOL
So have no idea has this has been affecting my ECU and whether or not it has adapted or if my ECU was European Type??
I've seen the older threads. haha
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As i stated, you will have richer air going into the intake. The air boxes from the US spec cars are so restriced and have charcoals to ensure that clean air enters the intake(emmision law). I'm not talking about fuel here. With a proper tune, it shouldnt be a problem and you can change your airboxes and filters without having a CEL.
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As i stated, you will have richer air going into the intake. The air boxes from the US spec cars are so restriced and have charcoals to ensure that clean air enters the intake(emmision law). I'm not talking about fuel here. With a proper tune, it shouldnt be a problem and you can change your airboxes and filters without having a CEL.
Air is not classified as "rich" or "lean". Air is air. The amount of air in relation to the amount of fuel and octane of fuel being used is what determines the air/fuel ratio and, thus, whether the measurement is rich or lean.
The air entering the intake stream on the US-spec cars is not "so" restricted, it is slightly more restricted than the ROW.
You can change your airbox and filters without a tune and not see CEL's as well. I have done this without seeing CEL's ever.
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