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Guest Message by DevFuse
 

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02 sensor non-fouler trick--what size?


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9 replies to this topic

#1 Kwhistle

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Posted 22 January 2010 - 01:00 PM

Just a simple question, hopefully someone can help me.. really need to pass that inspection, then I can get on to actually fixing the thing.

I read/understand (I think so at least) the non-fouler trick. Now, what size non-fouler do I need? Does anyone by chance know a part number or which model car it should fit? I check autozone web site, and what they have differs by car model/manuf. Or do o2 sensors come in the same size as spark plugs?

#2 wardssix

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Posted 22 January 2010 - 01:25 PM

Yes they (o2) are the same thread as plugs. I got a 2 pack (I think 18mm) at advanced for a few bucks. Just drill out the top one.
good luck
bob

#3 charm

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Posted 22 January 2010 - 01:31 PM

The brand is "HELP!" and the part number is 42009.

Worked well on my car. Still wish I could figure out why my car is throwing the code and fix it rather than working around it with this trick.

#4 '84 Flat-Four

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Posted 22 January 2010 - 01:39 PM

#42002 will work as well, with a 22mm wrench.

Dont use it on your front O2 sensor as it will screw-up your air-fuel mixture and make the car run like hell.
If you still get the code (P0420 i presume) after the trick just replace the front with a Bosch, inexpensive vs. OEM.

if youre getting the PO130 this will do nothing for it, then its an electrical issue within the circuit.

Good luck! Seems like you're having a tough time with that inspection...

#5 Kwhistle

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Posted 23 January 2010 - 09:16 AM

Thanks for all the replies. This forum is a really great asset to all the poor grad student Subaru owners. :grin:

Just a couple more questions--are the universal 3-wire sensors as good as the regular replacements? As I understand it, it's just a matter of connecting the wires. Also, are the front and rear sensors interchangeable? And should I get heated or unheated?

It's for a 98 OBW with a P0420 code.

#6 johnceggleston

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Posted 23 January 2010 - 09:21 AM

the front sensor should be a subaru part. the rear can be generic. technically the parts are the same, just the connectors are different but thre front MUST be a subaru part. get it on line . the other one can be cheap.

or get 2 cheap ones and do the anti fouler trick. but there is a much greater chance the cats will not work properly if you do.


www.subarupartsforyou.com

www.chaplinssubarugenuineparts.com/oe_parts_cat.html

Edited by johnceggleston, 23 January 2010 - 09:42 AM.


#7 charm

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Posted 26 January 2010 - 12:49 AM

Both of mine are Subaru and they are NOT the same. They look different and cost different (the rear is much pricier). The whole thing looks different, as I recall.

the front sensor should be a subaru part. the rear can be generic. technically the parts are the same, just the connectors are different but thre front MUST be a subaru part. get it on line . the other one can be cheap.

or get 2 cheap ones and do the anti fouler trick. but there is a much greater chance the cats will not work properly if you do.


www.subarupartsforyou.com

www.chaplinssubarugenuineparts.com/oe_parts_cat.html



#8 johnceggleston

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Posted 26 January 2010 - 12:58 AM

Both of mine are Subaru and they are NOT the same. They look different and cost different (the rear is much pricier). The whole thing looks different, as I recall.


what car / year?

#9 charm

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Posted 26 January 2010 - 10:59 AM

2000 obw. auto tranny.

#10 johnceggleston

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Posted 26 January 2010 - 11:16 AM

i always forget to state my year and model.

on one of my cars maybe both, 95 lego or 97 gt, when i had the exhaust off, i compared the front and rear. both were had 3 wires, both had the denso name on them and both had the same number stamped on them. only the connectors were different.

00 obw is the phase 2 SOHC, maybe they changed the spec.




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