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Old 09-18-2013, 07:26 AM   #1
02rsv02zx3
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Upstream o2 sensor compatibility??

I'm going to be doing the svt header swap in the near future( just waiting to find a orp) and figure what better time to replace my upstream o2 sensor... So I have found this is the motorcraft part number...
5C5Z-9F472-BA
Which when I search it comes up with a motorcraft part number cross reference of
DY-1040
But shows it is for many ford/mercury vehicles( which isn't too far fetched) and was wondering if anyone has had experience with the dy1040 and if it is the correct number? Or if its just a generic like a Bosch... Any info would be greatly appreciated... Also does anyone kno if cleaning the tip of the o2 sensor(with brake clean or carb cleaner) will help the old sensor? It's not bad to my knowledge, no codes, and the car runs fine just been getting in the mid 20s for mileage and I remember reading during my searching and research for the header swap that o2 sensor could cause a decrease in mileage... I should be recieving my xcal3 any day from Tom... And want to start bolting everything I have on...


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Old 09-18-2013, 08:53 AM   #2
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A datalog with show what condition your o2 is in , I would wait and datalog with your new xcal and see what things look like

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Old 09-20-2013, 08:39 PM   #3
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You cannot clean an O2 sensor period.

Bosch invented them, so they should know how they work.

You cannot tell by simply looking at one if good/bad except if physically broken.

You determine how bad they are by how fast they switch high/low, as they get older they slow down.
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Old 09-20-2013, 10:26 PM   #4
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Ok I figured as much I have a buddy that swears by cleaning them... Mainly the thread was more for the part numbers... I just received my xcal3 from Tom so I have to hook it up and see how it's working...
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