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Discussion Starter #1
hi guys,

Advice needed please, I have a mis fire on my r170 slk 320 on cylinder 6
I’ve changed the spark plugs and checked leads and swapped injectors which still hasn’t cured the problem? Any ideas?
 

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Administrator 2009 SLK 55 AMG/Founding member 2006
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94,831 Posts
misfires usually 4 things

sparkplugs
ignition wires
coil
injector

did u check/swap coils?
 

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Discussion Starter #6
The car will run perfect below 4000rpm once reset, only happens under hard acceleration
 

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Hey just curious, do folks ‘gut the cats’ on these cars? No, I am not condoning or suggesting it just wondering.
 

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Discussion Starter #13
Is there a reliable fault code list somewhere as I keep seeing different answers re p2054
 

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Super Moderator CA 2012 SLK55 AMG w/P30
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12,387 Posts
Is there a reliable fault code list somewhere as I keep seeing different answers re p2054
In corroboration of post 12
https://www.obd-codes.com/p2054

I find the trouble with P codes is that they are somewhat generic in nature and not an MB specific code. Hence your query.
 

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Super Moderator CA 2012 SLK55 AMG w/P30
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12,387 Posts
That refers to diesel fuel??
Ahh, so you noticed :wink: That's what I was trying to (subtly) illustrate about diagnosing generic P-codes. :tu:
 
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