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Where is the CO2 sensor on 1997 Pontiac Bonneville?

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Answered 2006-07-30 15:04:15

Oxygen sensors are typically on the exhaust manifold, near the headpipe. They screw in and there is usually at least one way to reach them that doesn't involve pulling the engine. V6 engines typically have an O2 sensor for each side, and some vehicles have both front and rear oxygen sensors, which can total as many as 4 sensors. But typically the rear sensors don't fail as often as the fronts. I don't know of any CO2 sensors in vehciles, just O2, so if you're looking for other information you'll need to get an answer from someone else.

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