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M273 unstable idling performance

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Old 07-23-2024, 08:47 PM
  #126  
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CLK 430
Here is the ignition advance problem on my m113. See how the ignition advance is spiking and moving by 5-10 degrees.

Do you have a similar issue with timing?
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Old 07-24-2024, 08:00 AM
  #127  
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04 E55 AMG (totaled), 07 S550 4Matic, 14 E63S
All due respect, this is an M273 thread. M113 and M278 discussions kind of distract.
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Old 07-25-2024, 09:08 PM
  #128  
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Yes, but a quick check of his timing can rule out a similar issue for engines utilizing similar knock sensor issues.
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Old 07-27-2024, 07:12 PM
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W221 S500
Originally Posted by andy_breuer
Yes, but a quick check of his timing can rule out a similar issue for engines utilizing similar knock sensor issues.
Do you know how to check it wit Xentry/DAS? And what exactly and how should I measure?
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