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 Post Posted: Sun May 24, 2009 9:22 am 
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Joined: Sun Nov 11, 2007 10:33 am
Posts: 1293
Location: Montgomery, Alabama
I'm a dumb azz. I was at the shop all day yesterday with a computer 3 feet away and forgot to look up that Carquest part number. Just like the others it's a OEM sensor by Bosch and an exact match. I think the application is for a 2000 beetle after the cat.


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 Post Posted: Sun May 24, 2009 12:12 pm 
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Joined: Sun Nov 11, 2007 10:33 am
Posts: 1293
Location: Montgomery, Alabama
Carquest Box:
oxy 75-2773
In fine print it says 544880


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 Post Posted: Sun May 24, 2009 12:30 pm 
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Joined: Wed Oct 24, 2007 6:36 pm
Posts: 718
Location: Blanco, Texas
Thanks Scott, I'll check it out when I get back in town.

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 Post Posted: Sun May 24, 2009 2:34 pm 
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 Post Posted: Sun May 24, 2009 7:21 pm 
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Joined: Thu Feb 12, 2009 7:52 pm
Posts: 348
I have had pretty good luck with my o2 sensors, I usually get between 200-300 passes on it. I attribute it to running a powervalve. I tune my engines to have a clean cruise and idle. I just replaced my current set. They were approximately 2 years old with 250 passes on them.

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Best 9.87@131 on the rev limitor 1 Feb 2013
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 Post Posted: Wed May 27, 2009 9:04 am 
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Joined: Tue Feb 12, 2008 8:28 am
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You should be able to get 200+ passes pretty easily. Being dead fat is what really kills the sensors. The lifespan of the sensor (since they’re the same) comes down to how you use it rather than the system you’re using.
Letting a hot sensor see moisture from the engine will shorten its life as well as putting the sensor in a spot where water can puddle on it.

Another thing to keep in mind is that as the sensors get older the membrane inside of them will get covered in debris and harder over time. This will diminish its response time, and make your numbers look better than they actually are.

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Braswell Carburetion

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