hi, 1997 O2 sensors, where are they located? Thanks.
Country: United StatesMake: ChevroletModel: lumina 3.1Year: 1997Engine: 3.1
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This vehicle has 2 oxygen sensors.
The upstream (sensor1) is mounted to the exhaust manifold, at the rear of the engine compartment, closest to the firewall.
The downstream (sensor2) is mounted to the exhaust, under the vehicle, behind the converter.
18+yrs experience. State Inspector and Chevy Diagnostics
I have a Bosch 13055 replacement, do yo know if this is the correct part?
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is sensor 1 the upstream sensor?
Glad I could help! Have a great day!