O2 sensor confusion

Tiny
DOUG42190
  • MEMBER
  • 1995 CHEVROLET CAMARO
  • 3.4L
  • V6
  • 2WD
  • AUTOMATIC
  • 158,000 MILES
I do not have a code reading B1 or B2. I am replacing the O2 sensors because the car is down for a while. I bought the sensors A/C Delco 213-1165 (right upstream) and A/C Delco AFS21 (supposed to be Left Upstream). As crazy as it might sound left and right sides of the engine appear to flip flop. Sometimes it is from the driver's seat and sometimes standing in from of the car looking to the rear of the car. Which "bank" is left and which is right? Is "bank 1" (the passenger's side with number one cylinder) the "left" or the "right"?
Thank you,
Doug
Saturday, July 28th, 2018 AT 7:22 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,663 POSTS
Here are the oxygen sensor locations with a guide to help you see how to change them out in case you need it:

https://www.2carpros.com/articles/how-to-replace-an-oxygen-sensor

Check out the diagrams (below). Please let us know if you need anything else to get the problem fixed.

Cheers, Ken
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Sunday, July 29th, 2018 AT 2:14 PM

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