Why are cylinders two and six misfiring under load?

Tiny
SAMUELHDZ98
  • MEMBER
  • 2009 AUDI A5
  • 3.2L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 121,000 MILES
Misfire only cylinder 2 and 6 when you go above 4,000 RPMs and under load.
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Sunday, July 24th, 2022 AT 6:05 PM

1 Reply

Tiny
BORIS K
  • EXPERT
Hello,

Are you using a diagnostic tool to check the misfire counters?

Have you tried replacing spark plugs and swapping ignition coils from okay cylinders, say 1+4, and then see if the misfire moves to the other cylinders?

See cylinder layout at bottom.

Also look at below link.
https://www.2carpros.com/articles/engine-misfires-or-runs-rough

Cheers, Boris
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Monday, July 25th, 2022 AT 7:23 AM

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