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Explorer, Sport Trac, Mountaineer & Aviator 1991-1994, 1995-2001, 2002-2005, 2006-2010 Ford Explorer

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Old 07-21-2005, 01:58 AM
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O2 Sensor code P0133 on '96 Explorer - I've got questions

Just wondering if anyone can give me some info. My mom's '96 Explorer set a Check Engine light this afternoon, and took it into Schuck's to pull codes. What I got was a code P0133 - O2 Sensor Circuit Slow Response (Bank 1 Sensor 1). Anyone else have this happen? Are there any other tests I should do before proceeding any further? Where is this particular sensor located? This truck has the 4.0 and an automatic. Any info would be appreciated.

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Old 07-21-2005, 10:30 AM
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Jim, that's the passenger side sensor, nearest to the exhaust manifold. Someone suggested in another thread that removing the wheel well splash guard will make it easier to access.

Generally speaking, a slow response code indicates the O2 sensor is gettting 'lazy', and a new one will indeed solve the problem......
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Old 07-21-2005, 10:30 AM

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