All O2 sensors are located on the exhaust system. Start at the exhaust manifold and work your way backward.
On the muffler
The sensor is located in the rear exhaust manifold.
Most oxygen sensors are either on the exaust headpipe just after the manifold or on the manifold. I don't know where it is exactly on the Lumina but that is where you should start looking.
Back side of the engine....mounted in the exhaust manifold.
Chevy Lumina has not the carborator.
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Yes
yes it will fit
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