e55 super lean
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Joined: Mar 2016
Posts: 25
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W211 E55 / Ws6 Procharger
e55 super lean
my car is running super LEAN
I bought my e55 with k&n filters cats del barabus exhaust and according to the pervious owner a bigger pulley balancer without tune, haven't changed anything, I just wanted to check the AFR so we run it in a dynojet was happy with the power and shocked by the afr 13.364, week ago I changed my fuel pump and filter with a new one and took it back to the dyno afr was 14!!!
so any doubts ?? or I jest need a tune
http://store2.up-00.com/2016-04/145985492911611.jpg
[/URL]
plz advice
and thanks in advance
I bought my e55 with k&n filters cats del barabus exhaust and according to the pervious owner a bigger pulley balancer without tune, haven't changed anything, I just wanted to check the AFR so we run it in a dynojet was happy with the power and shocked by the afr 13.364, week ago I changed my fuel pump and filter with a new one and took it back to the dyno afr was 14!!!
so any doubts ?? or I jest need a tune
http://store2.up-00.com/2016-04/145985492911611.jpg
[/URL]plz advice
and thanks in advance
Last edited by khalid janahi; Apr 5, 2016 at 08:05 AM.
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Joined: Jul 2014
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From: Earth, USA, Atlanta, GA
E55
It's most likely tune related. I almost took my car to the track and found out my AFR was 14.5. Pretty sketchy if you ask me. I went to Tony Lawshee and he corrected the tune and I was able to pick up more power and get to 12.8AFR
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From: USA
'06 E55 AMG
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From: San Diego
E55
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From: NZ
2004 E55 AMG, 2006 CLS63, 2004 ML55, 2014 E350 sport
Just a EC tune. Why doesnt it make any sense? You get more airflow through the exhaust and the engine will go lean. Anybody thats says 4 cats is not a restriction is kidding themselves.
I now have a retune while I build my headers which is to rich. Once the headers go on it should be in the ball park.
I now have a retune while I build my headers which is to rich. Once the headers go on it should be in the ball park.
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MBWorld Fanatic!
Joined: Nov 2007
Posts: 3,681
Likes: 39
From: San Diego
E55
Just a EC tune. Why doesnt it make any sense? You get more airflow through the exhaust and the engine will go lean. Anybody thats says 4 cats is not a restriction is kidding themselves.
I now have a retune while I build my headers which is to rich. Once the headers go on it should be in the ball park.
I now have a retune while I build my headers which is to rich. Once the headers go on it should be in the ball park.
