Is this a bad O2 sensor?
IF H2OS12 means Bank 1 Sensor 2, that's the post-cat
(rear) O2 sensor and it is going to be lazier and sort of
an average of what you see on S1 (front). It doesn't
look especially bad, it has activity and is not pegged
high or low.
If you have sensor codes for B1Ss or B2S2, just kill 'em.
(rear) O2 sensor and it is going to be lazier and sort of
an average of what you see on S1 (front). It doesn't
look especially bad, it has activity and is not pegged
high or low.
If you have sensor codes for B1Ss or B2S2, just kill 'em.
Thread Starter
Teching In
Joined: Aug 2005
Posts: 24
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From: Brentwood, TN
Originally Posted by jimmyblue
IF H2OS12 means Bank 1 Sensor 2, that's the post-cat
(rear) O2 sensor and it is going to be lazier and sort of
an average of what you see on S1 (front). It doesn't
look especially bad, it has activity and is not pegged
high or low.
If you have sensor codes for B1Ss or B2S2, just kill 'em.
(rear) O2 sensor and it is going to be lazier and sort of
an average of what you see on S1 (front). It doesn't
look especially bad, it has activity and is not pegged
high or low.
If you have sensor codes for B1Ss or B2S2, just kill 'em.
