Oxygen Sensor Replacement

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Apr 30, 2012 | 08:47 AM

bingo46

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Oxygen Sensor Replacement

Not getting a code, but would replacing the O2 sensor after 110k miles improve gas milage? Oh, it's a '98 4.6.

Apr 30, 2012 | 09:10 AM

Bell Blue Raider

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From: Bedford, TX

As long as you're not getting a code it'll most likely not have any effect

Apr 30, 2012 | 09:23 AM

otto457

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Possibly. The front O2 sensors are very slow to throw a code and should be part of normal maintenance IMO. It's not guaranteed it will improve mileage, but is a good thing to do to ensure proper a/f.

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