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Old 08-13-2001, 10:21 AM
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sixto sixto is offline
smoke gets in your eyes
Join Date: Jun 2000
Location: SF Bay Area
Posts: 20,114
On US cars, the O2 sensor is along the exhaust pipe just before the catalytic converter. The wiring runs along the front edge of the driver's seat.

It takes some doing to check since it's usually mounted to the top of the exhaust pipe (or one of the pipes).

If the car didn't come with an O2 sensor, I doubt anyone would have gone through the trouble of retrofitting one other than just to pass a visual inspection.

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