2006 Cadillac Srx Engine Running Rough Shell Rotten Eggs

2006 CADILLAC SRX
100,000 MILES
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ANONYMOUS
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engine running rough and shell like rotten eggs
Feb 23, 2013 at 8:36 PM
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ASEMASTER6371
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you have a missfire in the motor and raw fuel is contaminating the cat converter. get it checked out before you damage the cat and require replacing it.

Roy
Feb 23, 2013 at 8:41 PM
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DAVIDJESSUP1
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I have a 2004 srx with the same problem I've scan the code and got p301 also i know that that mean misfire cylinder 1 I've tested the all coils and found cylinder 3 open what do i do next i don't want to was money on this i have also replaced both down stream o2 senors about two months ago
Jul 1, 2017 at 5:33 PM
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STRAILER
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Hello,

Yep this is not a o2 sensor problem at all. Replace the open coil which will cause the problem. When a cylinder misfires it causes the system to go lean which the computer will richen up causing the rotten egg smell.

Please let us know what happens

Cheers, Ken

Jul 3, 2017 at 1:48 PM
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