Starting at the exhaust manifold follow the pipe back towards muffler they look like spark plugs with a wire on top going into the exhaust pipe
Thanks for reply John...Sorry, was having problem posting this so I don't think my whole question was shown. I have a O2 sensor out on 2007 Kia Rondo EXV6 2.7L. Code says P2A01 with description "O2 Sensor Circuit Range/Performance Bank 1 Sensor 2". I know this downstream of converter. Are all the sensors the same? I'm confused on parts because many say "for downstream sensor front & rear". Doesn't make sense unless there are 2 O2 sensors after Conv. but before muffler?? Can anyone help? Pic or PDF would be great. I was on kia-forums.com but they want $20 for access to docs. Thanks!!!! Kia dealer has different part #'s for all 4 of them at over $200 each!!! Amazon has a KAX250-24462 that says
"Notes: OE - DOWNSTREAM FRONT - DOWNSTREAM REAR". Totally confused! Are they actually different sensors for each or same sensors with different wire lengths?
sensor 2 is it one after the converter [rear] some sensors are different because they are heated and are usually infront of converter and yes their are vehicles [dual exhaust or three converters ] that have more than 2 sensors amazon as u have said has 4 of them 2 upper and 2 lower for 83 us if u notice they are two different plugs so 2 different units
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It's a V6 with pulley's on passenger side and Y's into a single exhaust out back so would the 2 upstream sensors be the same even though on diff. banks(exhaust manifolds) off the block? And sensors upstream need to be "heated" vs. downstream (after conv.) can be heated or unheated? Am I understanding that correctly?
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