How many oxygen sensors are on a 1997 Geo Metro?

In: Geo, Chevy Metro, Geo Metro

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One... It's screwed right into the exhaust manifold. It's very easy to get to but can be hard to get the old one out... They make special sockets for O2 sensors.

From 1996 on, the system is OBD-II, which has two oxygen sensors, one on the exhaust manifold and a second one on the catalytic converter. Pre-96 only have one on the exhaust manifold. The sensor wiring varies with 3-pin and 4-pin variations.

First answer by ID2671054482. Last edit by ID2178157335. Question popularity: 66 [recommend question]

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