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Oxygen sensor question

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Old Dec 22, 2011 | 08:29 PM
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Default Oxygen sensor question

On my '10 Ultra there is a black connecter and 1 white 1.Which is the front cylinder?Thanks
 
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Old Dec 22, 2011 | 08:53 PM
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Rear is black, front is white.
 
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Old Dec 22, 2011 | 09:00 PM
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Dark color is the rear. White one if for the front. I marked mine before removing them so I wouldn't get mixed up when re-installing my new 18mm O2s.. Mixing them up can cause runability issues.

You can find a good photo of this in the service manual, page 4-24.
 
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Old Dec 23, 2011 | 07:12 AM
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Thanks guys.
 
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