Changing O2 sensors
06-11-2009, 03:25 PM
#1
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Changing O2 sensors Hey guys,
So I was told that the rear O2 sensor near the cat does not effect A/F ratio, but only determines the efficiency of the cat. Is this correct?
So, I really only need to replace the front O2 sensor if my car is running rich? Also, WHERE is the front one?!
Thanks guys.
So I was told that the rear O2 sensor near the cat does not effect A/F ratio, but only determines the efficiency of the cat. Is this correct?
So, I really only need to replace the front O2 sensor if my car is running rich? Also, WHERE is the front one?!
Thanks guys.
06-11-2009, 03:31 PM
#2
I thought '93's only had the front pair of o2 sensors
Even if you had post-cat o2 sensors, you only have one cat, so you'd only have one rear o2 sensor...
Yes, post-cat o2 sensors only serve to measure the efficiency of the cat.
For the front o2 sensors you should only be running AC Delco's.
Even if you had post-cat o2 sensors, you only have one cat, so you'd only have one rear o2 sensor...Yes, post-cat o2 sensors only serve to measure the efficiency of the cat.
For the front o2 sensors you should only be running AC Delco's.
06-11-2009, 03:54 PM
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