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Old 09-16-2012, 01:30 PM   #2
sailor
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haven't looked up those codes yet, just thought I'd mention first that the plugs & wires certainly won't hurt 7 you should take a CLOSE look at the coil and it's wiring while you're at it.

On single coil Focus's, removing the coil & checking the base for cracking solves many issues with similar symptoms if cracks are found, the wiring issue is less common for a particular speed range.

luck!
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