Computer Diagnostics and Tuning Technical discussion on diagnostics and programming of the F-body computers

Rear O2 sensors, how many are there?

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Mar 7, 2011 | 09:22 AM

#1

B4CTROOPER

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Posts: 83

From: Lexington, SC USA

Rear O2 sensors, how many are there?

On a 2001 LS1 Z, are there 2 after cat O2 sensors or just 1?

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Mar 7, 2011 | 09:57 AM

#2

2001NBMZ28

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From: Jacksonville, FL

Re: Rear O2 sensors, how many are there?

Each cat has one pre cat sensor, and one post cat sensor.

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