O2 Sensors

[Crazee D]

OK guys, I need some help here....
Due to issues explained in my "Drone from Hell" thread;
I am looking to find a replacement O2 Sensor

Part#s
1. Bosch 13870 OE style b4 cat
2. Bosch 13868 OE style after cat
3. Bosch 15733 Universal b4 or after
4. Denso 234-4721 OE style b4 cat
5. Denso 234-4209 Universal
6. Valucraft XS15734 Universal
7. "Beck Arnley" 156-4160 with 4 wires

Now, from what I can figure the "OE Style" means that it comes with wires attached to a clip rather than a splice it yourself "kit". Apparently, this is the cause of the huge price difference. (boom07) Aaallllrighty then....

So, 2 things here: First, is it worth trying to test these sensors to see if they are still OK (40K miles)? Second, are all other sensors the same?

Here are some prices I'm still collecting on the sensors.
AutoZone
1. $334.99 (no lie)
2. $269.99 (DOH!)
3. $99.99
4. $279.99
5. $61.99 (now we're talkin')
6. $64.99
7. $189.99

Oxygen Sensor Wholesale
1. $206
2. $146
3. $67 for a Bosch 15734 Univ

So, fire away...where do I start?(cheers)

 

[altspace]

Someone with knowledge help a brotha out.

 

[peepsalot]

Well, I don't really know if this helps much, but I found this site a while back.
http://www.drivewire.com/mazdaparts/catalog/mazdaprotegeoxygensensor.html
I can't even remember why I was looking at it. I haven't replaced any O2 sensors yet, but looks like they have good prices.
Unfortunately I don't know about testing procedures or if all these sensors are really created equal though.

 

[Crazee D]

Cool, man Thanks!
This site had more info than I could digest:
http://www.wps.com/LPG/o2sensor.html

this one was a little better:
http://www.bobblick.com/techref/projects/o2sensor/o2sensor.html

found better prices already
http://www.oxygensensorwholesale.com/mazda_2002_protege5.html

 

[Crazee D]

OK...next update...via MSMS Mazdaspeed Motorsports

Stock Part#s
FP 5018861A $116 after
FS 7N18861 $120 before

HARNESS BPY1-67-020 $26.10

OY!

 

[Crazee D]

Geez, lets not all post at once or anything!
Really, anyone? Help?

 

[Protege2K]

Hoping Ken will swing by this thread and give us some prices. I need the o2 sensor after the cat. The Bosch one for $145 doesn't seem too bad since it is plug and play.

 

[nato]

Subscribed. I'm in need of an O2 sensor as well, to get rid of my CEL..

 

[Brian MP5T]

O2

 

[ghettobubba2001]

what do u need the one for the Midpipe or whatnot? if so i have 2 that i need to sell pm me.

 

[Protege2K]

what do u need the one for the Midpipe or whatnot? if so i have 2 that i need to sell pm me.

I need the one after the cat, pm what you are looking to get.

 

[Crazee D]

Cool guys! Now we're getting somewhere...

 

[Crazee D]

NAPA Auto parts

1. $268
2. $185
3. $99

Lots of info here:
http://www.boschusa.com/AutoParts/FAQs/OxygenSensors/

 

[Kansei]

what do u need the one for the Midpipe or whatnot? if so i have 2 that i need to sell pm me.

do you still have these? I have one but it is back home still in my stock manifold and I don't want to bother my dad by having him find the manifold, remove it, and ship it up to me at school.

 

[Crazee D]

http://cgi.ebay.com/ebaymotors/NEW-BOSCH-15733-Premium-Oxygen-Sensor-AUDI-VW-TOYOTA_W0QQcmdZViewItemQQcategoryZ33557QQitemZ8042616499QQrdZ1QQsspagenameZWDVW

$40 plus $8 shipping
WOOT!

 

[Crazee D]

More useless info:
Front sensor is 3-7 Ohm, post-cat is 10-20 Ohm
Our sensor is a PLANAR type as most newer cars have, it has a thinner element that heats faster to get correct readings sooner (or so I've been told by the Engineers over at Bosch AND Denso).
Normal O2 sensors measure Voltage and a Wideband measures Amperage, but I don't know how that factors in to the situation.
And the 5th wire on a 5 wire WB sensor is for the pump circuit.

Hope this helps somebody...

 

[Diehonda]

Part#s
1. Bosch 13870 OE style b4 cat
2. Bosch 13868 OE style after cat
3. Bosch 15733 Universal b4 or after
4. Denso 234-4721 OE style b4 cat
5. Denso 234-4209 Universal
6. Valucraft XS15734 Universal
7. "Beck Arnley" 156-4160 with 4 wires

cheers)

3. I got one at Autozone for $57 and some change. Not sure why they quoted you differently.

 

[livelyjay]

You need to get a universal O2 sensor, the more expensive ones are OEM replacements. There is no need to get the OEM replacement ones. Universal O2 sensors may require some wire splicing, but that's no big deal is it?

Buy one from www.oxygensensors.com and call it a day. I have bought from them before and the sensor worked just fine. If you are getting a CEL because you are missing the pre-cat, do the mechanical fix by using anti-foulers from the auto parts store.

 

[Kansei]

You need to get a universal O2 sensor, the more expensive ones are OEM replacements. There is no need to get the OEM replacement ones. Universal O2 sensors may require some wire splicing, but that's no big deal is it?

Buy one from www.oxygensensors.com and call it a day. I have bought from them before and the sensor worked just fine. If you are getting a CEL because you are missing the pre-cat, do the mechanical fix by using anti-foulers from the auto parts store.

So if I put the second O2 sensor after the primary cat (a high flow cat in a midpipe) I might not need the nonfouler trick? Or since emissions at initial startup won't be affected by the primary cat will the CEL still come on.

 

[livelyjay]

So if I put the second O2 sensor after the primary cat (a high flow cat in a midpipe) I might not need the nonfouler trick? Or since emissions at initial startup won't be affected by the primary cat will the CEL still come on.

I will not guarantee it, but most likely you will not need the anti-foulter trick. On my Lancer, I put a turbo kit on it which removed the first cat. What some people did was turn the second cat around (so bung was behind it) and just extended the stock wires. Worked like a charm.