Olds alero P0141 Bank 1 Socket 2

toddq36 · **Joined:** Fri Oct 03, 2008 4:02 am **Posts:** 1

I have this code that comes up on my Olds Alera, P0141 Bank 1 Socket 2. I know it is the O2 sensor, but I don't know if it is the upstream, or downstream sensor. How do I figure this out?

Sponsored Links · **Joined:** 29 Jun 2004 08:12 pm **Posts:** N/A

Mohawkmtrs · **Posted:** Fri Oct 03, 2008 6:14 am

I believe you mean SENSOR 2, not Socket on Bank 1.

Sensor 1 is the upstream sensor and Sensor 2 is the downstream one.

FergusonTO35 · **Joined:** Mon Sep 08, 2008 9:35 pm **Posts:** 154

Sensor 1: before the catalyst. Sensor 2: after catalyst. Be sure you know exactly which side of the engine is bank 1 also. A twenty dollar Haynes manual has alot of useful, easy to understand info about your car.

Olds alero P0141 Bank 1 Socket 2

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