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Thread: oxygen sensor part #'s
12-06-2012, 04:05 PM #1
oxygen sensor part #'s
I hoping someone here has an answer to this question...
Does anyone know why some manufactures, of o2 sensors, have the same part number for Upstream & Downstream sensors while others have two different part numbers?
I'm having an intermittent code pop up referencing the o2 sensors, so I've decided to just replace them all. I had one replaced immediately after both cats were replaced. Very possible the slow o2 caused the failure of the cat...so I'm done playing this game and want to replace them all. While checking online at AZ, RockAuto and Kragen, I've noticed a significant price difference between the parts (as to be expected). I just can't understand while they list the same part/part# with a description of "upstream" then list it again as "downstream", but some parts show both up and down in it's description...
Thanks!>>>2003 Suburban K1500 LT<<<
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01-05-2013, 11:42 AM #2
- Join Date
- Aug 2009
what are the specific codes that are being thrown ? o2's can fail in many ways ex. hearter circuits .one thing to remember with aftermarket o2's is trash going in get's trash coming out (of pcm)
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