C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

Multiple cylinder missfires

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Old Jul 7, 2019 | 06:01 AM
  #1  
courtice_m's Avatar
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Joined: Oct 2009
Posts: 17
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From: Toronto, Ontario
2005 C230K Coupe
Multiple cylinder missfires

Help!!
05 C230 Kompressor
Scanner shows multiple #1 cylinder missfires.
This is a intermittent problem but happens randomly and frequent.
When it happens it will run rough etc(BUT) if you (RESTART) it will all be corrected untill the next time it happens.
I've changed plugs/MAF/ etc etc, even went as far as swapping out an ECM .
Swapped coil packs, no change the problem stays with #1 cylinder.
I'm stumped, all input greatly appreciated!!
What really blows my mind is when it's restarted...it runs excellent!!










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Old Jul 7, 2019 | 05:14 PM
  #2  
RedGray's Avatar
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Joined: Sep 2016
Posts: 571
Likes: 92
From: New England! :-)
2005 C230K Sport Coupe
What does Live Data show for vacuum, short term trim, and long term trim?
Gas or diesel?
How many miles on the engine?
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