Question about 1997 Pontiac Bonneville

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Where is the oxygen sensor located? heard it was on firewall...

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Nope not on the firewall. The O2 sensor is located in the exhaust system. Start at the exhaust manifold and then the exhaust pipe down to the catalytic converter. You will find the Oxygen Sensor screwed in somewhere. It looks like this. where is the oxygen sensor located? heard it was - 2f8606b.png

Posted on Aug 02, 2010

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Posted on Jan 02, 2017

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