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Backfire problems...

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Old 12-12-2009, 04:53 PM
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Default Backfire problems...

Hi,

Is it possible for damaged o2 sensors to make a LS1 run rough and backfire? All so could it be possible custom leads or the heat shield on them spark and cause backfire?
Old 12-13-2009, 07:41 AM
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when does your car backfire? when you start it up or all the time?




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