Focus Fanatics - View Single Post - SVT with sudden rough idle, power loss
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Old 01-16-2013, 09:24 AM   #14
svtguy88
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Join Date: Sep 2004
Fan#: 13476
Location: Menomonee Falls, WI
What I Drive: 2003 Infra Red SVT

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Maybe a failing o2?

Before changing the primary o2 sensor (for the second time), my car would run fine for a bit, and then randomly run like garbage. It too was better with some throttle applied than with it being at idle or even just above.

Should throw a CEL, but mine didn't always...
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