ECU tune too rich smell burning
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Joined: Apr 2009
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E55
Mechanics logic is not totally off base(As far as increasing boost to lean it some) But it's the Kleemann tune. That would incline that the tune was not optimized for your car and mods you have, not what you are gonna put in down the road.
I am getting a Emmisions failure at idle on my K-4 tune. so this time it going on a dyno and no one size fits all chip..
I am getting a Emmisions failure at idle on my K-4 tune. so this time it going on a dyno and no one size fits all chip..
To put it simply, increasing airflow would only lean out the mixture if the fueling was stuck at a fixed value, which it is not. Adding boost would put you on a different part of the WOT fueling map.
As PACougar pointed out, Kleemann is not going to change the target AFR for closed loop operation.
Thread Starter
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From: Socal, Chino
E55 2006 / CLS55 / S450 / Jag XKR2011
Where in dash you guys install the AFR gauge ? and which one ? there are so many with AEM.....
And what's the right ratio ? 12.2 stock ?
And what's the right ratio ? 12.2 stock ?
Last edited by CharlyE500; Dec 18, 2012 at 03:26 PM.
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Joined: Oct 2012
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From: Santa Monica
2005 e55
To put it simply, increasing airflow would only lean out the mixture if the fueling was stuck at a fixed value, which it is not. Adding boost would put you on a different part of the WOT fueling map.
As PACougar pointed out, Kleemann is not going to change the target AFR for closed loop operation.
As PACougar pointed out, Kleemann is not going to change the target AFR for closed loop operation.
I see. Just getting into these cars not sure how the ECM strategy works..
I was assuming they ran of an open fuel loop with a closed loop for idle and economy.
Last edited by groove66; Dec 18, 2012 at 08:55 PM.
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From: Santa Monica
2005 e55
I did get a MAP implausable code.
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From: Orbiting the planet
This place is a joke.
Charly this smell is normal since your primary cats are gone. I also have Kleemann headers, and was just dyno tuned by Eurocharged and mine smells the same after a hard acceleration.
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From: Seattle
2008 Mercedes Benz E63
Even when your drive a bone stock car hard it makes a burning smell from the cats getting ultra hot.
If you do not have cats it all, of course the car will "smell rich". Especially when its just idling. They stink.
If you do not have cats it all, of course the car will "smell rich". Especially when its just idling. They stink.
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Thread Starter
MBWorld Fanatic!
Joined: Dec 2008
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From: Socal, Chino
E55 2006 / CLS55 / S450 / Jag XKR2011
Thanks man ! I think you are right. Since I installed the header and pull hard then the burning smell. I guess I was paranoid when my mechanic test drove it. Just thinking if need to upgrade the SC pulley. According to Kleemann my tune is good up to Crank pulley 172m boost so I think I should be fine.
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From: Orange County CA
CLS63S
I wouldn't worry too much about lower pullies. The most recent failure is just fresh in everyones heads but hasnt happened enough to make me want to advise anyone against a lower pulley. (unless you dont have a trustworthy shop) You live in So Cal. Take it to Benzworks and have Serge do the install. I drove my car hard for nearly 10k miles with a 180mm ASP on it. Never wobbled, threw belts, or squeaked.
