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-   -   How to indentify Bank 1 and Bank 2 for O2 sensors? (http://986forum.com/forums/boxster-general-discussions/62953-how-indentify-bank-1-bank-2-o2-sensors.html)

heiwaz 08-31-2016 02:08 AM
How to indentify Bank 1 and Bank 2 for O2 sensors?
 
Hello, How yo identfy wich is bank 1 and bank 2 in my 986s?. I have a failure in one of the O2 sensor (Bank 1, sensor 1)

JFP in PA 08-31-2016 02:38 AM
Quote:
Originally Posted by heiwaz (Post 508449)
Hello, How yo identfy wich is bank 1 and bank 2 in my 986s?. I have a failure in one of the O2 sensor (Bank 1, sensor 1)
Bank 1 is the side with cylinder 1:

http://txautonet.com/wp-content/uplo...3.4-2002-3.jpg

Sensor 1 is ahead of the cat, 2 is behind the cat.

heiwaz 08-31-2016 03:53 AM
Quote:
Originally Posted by JFP in PA (Post 508451)
Bank 1 is the side with cylinder 1:
Sensor 1 is ahead of the cat, 2 is behind the cat.
Thank you! I was sure that cat bank 1 was the right one (cylinder 1-2-3) but I had doubt because obd2 checking also detected missfire failure in the other engine side (cylinders 4-5-6) 😕


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