ECU tune too rich smell burning
Thread Starter
MBWorld Fanatic!
Joined: Dec 2008
Posts: 4,411
Likes: 69
From: Socal, Chino
E55 2006 / CLS55 / S450 / Jag XKR2011
ECU tune too rich smell burning
Last Friday when I went to do my A service my mechanic told me that my car has burning smell after aggressive drive. According to him, my ECU tune is too rich. Kleemann told me my tune is good for up to 172m pulley so my question is will smaller SC pulley increase boost could fix this problem ? My mech told me it would balance it so will burn out the excess fuel. I just want your guys opinion. If that's true means I don't need a tune when I install SC pulley ?
Thanks for any advice.
Thanks for any advice.
Thread Starter
MBWorld Fanatic!
Joined: Dec 2008
Posts: 4,411
Likes: 69
From: Socal, Chino
E55 2006 / CLS55 / S450 / Jag XKR2011
I am thinking to install the smaller SC pulley since I am scared of Crank pulley bad installation. I remember the SC pulley will increase the boost. Just not sure how much boost will increase.
MBWorld Fanatic!
Joined: May 2011
Posts: 1,109
Likes: 20
From: Las Vegas, NV
1000Hp Diesel Trucks, 2019 E63s
Never ever try to fix a tuning issue by trying to put parts on to make up for the tune. Without data who know where in the RPM band it's running rich or by how much, you could easily fix a rich spot in the band with the pulley and then run lean somewhere else and blow your motor up.
Trending Topics
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
MBWorld Fanatic!
Joined: Feb 2012
Posts: 1,355
Likes: 6
E55 amg
When I got my kleeman tune for my headers they told me they gave me a stage II with the boost maps already in place so if I ever wanted to raise the boost I just install new pulley and I'm ready to go.
Thread Starter
MBWorld Fanatic!
Joined: Dec 2008
Posts: 4,411
Likes: 69
From: Socal, Chino
E55 2006 / CLS55 / S450 / Jag XKR2011
I have the same tune. Do you smell burning after aggressive driving ? normal driving is totally fine. I was also told the tune is good for up to 172m crank pulley boost. I smell the burning since I installed the Header and Tune 1 year ago. I only drove 3000 miles since last year.....
MBWorld Fanatic!
Joined: May 2011
Posts: 1,109
Likes: 20
From: Las Vegas, NV
1000Hp Diesel Trucks, 2019 E63s
I have the same tune. Do you smell burning after aggressive driving ? normal driving is totally fine. I was also told the tune is good for up to 172m crank pulley boost. I smell the burning since I installed the Header and Tune 1 year ago. I only drove 3000 miles since last year.....
MBWorld Fanatic!
Joined: Feb 2012
Posts: 1,355
Likes: 6
E55 amg
I have the same tune. Do you smell burning after aggressive driving ? normal driving is totally fine. I was also told the tune is good for up to 172m crank pulley boost. I smell the burning since I installed the Header and Tune 1 year ago. I only drove 3000 miles since last year.....
SPONSOR
Joined: Jul 2007
Posts: 5,459
Likes: 152
From: Houston/ Austin /Toronto / UAE / Minneapolis / Orlando /Cincinnati
Eurocharged Performance ML63 and TT lambo
agreed with the boys...grab some logs and let us all know. You want to check IAT's as well as if your spiking then the ecu is dumping fuel to compensate (like it should)
Guys, I can't say this enough. Once you start modding get a afr gauge on the car! You wouldn't believe how many times we get someone blaming software only to find out its a hardware error!!!
Guys, I can't say this enough. Once you start modding get a afr gauge on the car! You wouldn't believe how many times we get someone blaming software only to find out its a hardware error!!!
MBWorld Fanatic!
Joined: Mar 2011
Posts: 1,879
Likes: 22
From: Orange County, CA.
one car at a time
You need a wideband to log your AFRs.
I cannot understand why anyone would start modifying a car and changing the factory tune without a wideband. Without one (or using one while tuning), you are just guessing blindly and risking your motor.
As for Toadster's bad tank of gas - ridiculous....I can't even begin to understand his thought process...
I cannot understand why anyone would start modifying a car and changing the factory tune without a wideband. Without one (or using one while tuning), you are just guessing blindly and risking your motor.
As for Toadster's bad tank of gas - ridiculous....I can't even begin to understand his thought process...
MBWorld Fanatic!
Joined: Dec 2011
Posts: 1,485
Likes: 26
From: new ringgold pa
99 ford lightning
Every car is different. I will say this if i would of used my first baseline tune and no fault to anyone it was a starting point my car would not run the way it does. It would of showed killer torque on the dyno but bs drag times. Two street pull with my zietronix and the air fuel spot on!. This is a must either do it on the street then check the power on the dyno or get it close on the dyno and do one street pull to clean it up because it will be a tad different. On my dynojet 224 load is the same as street but af often gets richer on the street.
MBWorld Fanatic!
Joined: Dec 2011
Posts: 1,645
Likes: 13
From: tampa florida
19 f-150 limited (w/raptor engine) 06 e55,81SC Targa,08 CLK63 BLK,91 E34 M5
MBWorld Fanatic!
Joined: Dec 2011
Posts: 1,645
Likes: 13
From: tampa florida
19 f-150 limited (w/raptor engine) 06 e55,81SC Targa,08 CLK63 BLK,91 E34 M5
Thread Starter
MBWorld Fanatic!
Joined: Dec 2008
Posts: 4,411
Likes: 69
From: Socal, Chino
E55 2006 / CLS55 / S450 / Jag XKR2011
Check for exhaust leaks, make sure down pipes are welded good. What I was told by kleeman is that the boost maps where in place if I ever decided to add a pulley but, never would be used being I'm running stock boost. Perhaps the smell you smell is from having the primary cats deleted ?
MBWorld Fanatic!
Joined: Apr 2009
Posts: 1,258
Likes: 5
E55
Was he following you as you were driving aggressively, or did he drive it? If the latter, there is no way he could accurately distinguish what the mixture was/is.
As for what he said about the pulley cleaning up the alleged mixture issue, you might want to find a new mechanic.
As for what he said about the pulley cleaning up the alleged mixture issue, you might want to find a new mechanic.
Last Friday when I went to do my A service my mechanic told me that my car has burning smell after aggressive drive. According to him, my ECU tune is too rich. Kleemann told me my tune is good for up to 172m pulley so my question is will smaller SC pulley increase boost could fix this problem ? My mech told me it would balance it so will burn out the excess fuel. I just want your guys opinion. If that's true means I don't need a tune when I install SC pulley ?
Thanks for any advice.
Thanks for any advice.
Thread Starter
MBWorld Fanatic!
Joined: Dec 2008
Posts: 4,411
Likes: 69
From: Socal, Chino
E55 2006 / CLS55 / S450 / Jag XKR2011
Was he following you as you were driving aggressively, or did he drive it? If the latter, there is no way he could accurately distinguish what the mixture was/is.
As for what he said about the pulley cleaning up the alleged mixture issue, you might want to find a new mechanic.
As for what he said about the pulley cleaning up the alleged mixture issue, you might want to find a new mechanic.
Before the service he test drove it and once its park smell like gun powder. I just spoke to Cory from Kleemann that smell might be because of Primary Cat delete. Plus, the smell is not gas smell, its more like gun powder like firework. I guess its just the Header.
"catalytic converters were designed to limit the emissions of hydrocarbons (unburnt fuel), oxides of nitrogen (NoX) and Carbon Monoxide, so removing even one set will make the car smell"
MBWorld Fanatic!
Joined: Apr 2009
Posts: 1,258
Likes: 5
E55
By the time the car was parked, it had been running closed loop for quite some time. Again, no way he could tell what the mixture was at wot.
I agree with Cory on the primary delete...or you are leaking some fluid on the exhaust.
I agree with Cory on the primary delete...or you are leaking some fluid on the exhaust.
Member
Joined: Oct 2012
Posts: 230
Likes: 1
From: Santa Monica
2005 e55
Was he following you as you were driving aggressively, or did he drive it? If the latter, there is no way he could accurately distinguish what the mixture was/is.
As for what he said about the pulley cleaning up the alleged mixture issue, you might want to find a new mechanic.
As for what he said about the pulley cleaning up the alleged mixture issue, you might want to find a new mechanic.
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..
Last edited by groove66; Dec 18, 2012 at 12:39 PM.
MBWorld Fanatic!
Joined: May 2011
Posts: 1,109
Likes: 20
From: Las Vegas, NV
1000Hp Diesel Trucks, 2019 E63s
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..
