Bank 1 sensor 2, O2 sensor
#2
Depends on what system you have and how many sensors you have.
You will have one upstream sensor (B1S1). You could potentially have two down stream sensors. If you have three O2 sensors total, then B1S2 would be the pre-cat sensor and B1S3 would be the post-cat sensor. If you only have two O2 sensors total, then B1S2 would be the post-cat sensor. Just take a look at your exhaust system and count the O2 sensors between the exhaust manifolds and the muffler.
You will have one upstream sensor (B1S1). You could potentially have two down stream sensors. If you have three O2 sensors total, then B1S2 would be the pre-cat sensor and B1S3 would be the post-cat sensor. If you only have two O2 sensors total, then B1S2 would be the post-cat sensor. Just take a look at your exhaust system and count the O2 sensors between the exhaust manifolds and the muffler.
Thread
Thread Starter
Forum
Replies
Last Post
joshkayx
2nd Generation S-series (1995-2005) Tech
9
10-29-2018 08:06 PM
FOGEL
2nd Generation S-series (1995-2005) Tech
2
03-26-2013 07:24 AM
jukeboxhorse
2nd Generation S-series (1995-2005) Tech
1
04-29-2009 11:28 AM
daniel010
Engine & Transmission
8
02-02-2009 06:50 AM