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Chevrolet lumina 3.1 hi, 1997 O2 sensors, where are they located

Answered by:Ron Z.
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Customer Question

hi, 1997 O2 sensors, where are they located? Thanks.

Country: United States
Make: Chevrolet
Model: lumina 3.1
Year: 1997
Engine: 3.1

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Submitted: 836 days and 7 hours ago.

Category: Chevy

Value: $18

Status: CLOSED

Accepted Answer

Expert: Ron Z. replied836 days and 7 hours ago.

Welcome to JustAnswer.com! My name is DriveFast71(Ron) and I will do my best to answer all of your questions completely and accurately.

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.

Expert Type	- Chevy Tech -
Category:	Chevy
Pos. Feedback:	98.4 %
Accepts:	1592
Answered:	3/6/2011

Experience: 18+yrs experience. State Inspector and Chevy Diagnostics

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Customer replied836 days and 7 hours ago.

I have a Bosch 13055 replacement, do yo know if this is the correct part?

Expert: Ron Z. replied836 days and 7 hours ago.

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Customer replied836 days and 7 hours ago.

is sensor 1 the upstream sensor?

Expert: Ron Z. replied836 days and 7 hours ago.

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Customer replied836 days and 7 hours ago.

thanks

Expert: Ron Z. replied836 days and 7 hours ago.

Glad I could help! Have a great day!

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