Do I need to disconnect the battery when replacing the o2 sensor? Also, anyway I can clear the codes when I do install the o2 or do I need to plug in the scanner in order to clear it?
Dealer told me I HAD to use MotorCraft spark plugs only and that the Bosch Platinums I gave them, would eventually "cause me problems" later on. That was about 35k miles ago..engine running just fine.
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