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Misfire cylinder 2, 3 and 4 Misfire cylinder 2, 3 and 4
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Old 05-28-2013, 04:19 PM
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Join Date: Nov 2011
Location: Livermore, CA
Posts: 295
bastereo is on a distinguished road
Your friend is wrong, there is no way that is a cat failing.
Your car has 2 cats, one for cylinder 1, 2, and 3 and a second cat for cylinder 4, 5, and 6.
See you your cylinder 2, 3, and 4 are in both cats and there are 3 other cylinders without problems.

Coil problems are common, but 3 at once is odd...
Did you replace the plugs at 100k?
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