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Thread: No O2 reading
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Old 10-22-2009, 08:59 PM   #9
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Thats what I was thinking too. Unfortunately the print out Ford gave me does not show power or ground, just the 2 wires that go to ecu. I know which is power from checking it with a test light, but is the 4th wire ground or does it ground itself on the exhaust?
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Last edited by disciplerocks; 10-22-2009 at 09:00 PM. Reason: i can't spell
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