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NTK Oxygen Sensor

9

99_silver_svt

New CEG'er
Joined
Sep 30, 2008
Messages
17
I'm replacing my upper oxygen sensors.

I purchased NTK 22060 sensors. However the connectors to the wiring harness are round instead of square.

Would cutting the wires and attaching the old connection to the new sensors be a good idea?

I'll take pics if need be. Thanks!

(Apologies Mods I accidentally tried to post this in the HOTO section)
 
I'm pretty sure wires don't carry air :cool:

After a little more reading I just decided to splice the wires.

We'll see if it pays off shortly!
 
i think you got the wrong o2 sensor......theres a difference between upstream and downstream.....:shrug: I'm not sure they'll work the same way......
 
Yeap they gave me the downstream sensors... damn... just finished the one by the firewall...

Can anyone confirm the technical difference between the upper and lower O2 sensors, is there a difference besides the plug itself?
 
Gonna bump this and hope for a quick reply.

Besides the connection is there any difference between an upstream and downstream o2 sensor?
 
Old 02 sensors used to be vented through the wire harness. Crazy but true. This should not be an issue anymore. Splicing is fine but solder, don't crimp. You're dealing with very low voltages (0.1-0.9 Volts). Crimped connections can have enough resistance to cause problems at such a low voltage.
 
mcgarvey said:
Old 02 sensors used to be vented through the wire harness. Crazy but true. This should not be an issue anymore. Splicing is fine but solder, don't crimp. You're dealing with very low voltages (0.1-0.9 Volts). Crimped connections can have enough resistance to cause problems at such a low voltage.
Click to expand...

Thanks for the quick reply :) So basically your saying both sensors are the same? And if I do a decent wiring job I'll be fine?
 
ummmmmmmm......:shrug:.........I dont know about that I recently changed all my 02 sensors and up stream and downstream were different besides the round and square plug in......all the old ones looked the same at the tip and just changed ant the plug.........:shrug: never really investigated to see if they work the same......shoulda stuck with a universal one......
 
return style fuel system cars have square connectors on the upstream O2 sensors and round connectors on the down stream sensors.

for a returnless fuel system car all the O2 sensors have round connectors, I believe they maybe keyed differently.

however replacement lower O2 sensors for the return fuel cars don't have keys so you could use them in either upstream or down stream position as they both have the same function.
 
BrApple said:
return style fuel system cars have square connectors on the upstream O2 sensors and round connectors on the down stream sensors.

for a returnless fuel system car all the O2 sensors have round connectors, I believe they maybe keyed differently.

however replacement lower O2 sensors for the return fuel cars don't have keys so you could use them in either upstream or down stream position as they both have the same function.
Click to expand...

Alright thanks for the replies fellas. If I've read that correctly I should be okay. I guess I'll find out in a few hours :)
 
Beans said:
And your doing a 3L? Pwntbywombat#2
Click to expand...

Yeah and you guys think I am the retarded one? Here are some sources...

1. From: Automotive Fuel and Emissions Control Systems by James D. Halderman and Jim Linder Page 264 Paragraph 2 -
"Exhaust from the engine passes through the end of the sensor where the gases contact the outer side of the thimble. Atmospheric air enters through the other end of the sensor or through the wire of the sensor and contacts the inner side of the thimble."

2. http://nightrider.com/biketech/hd2007HD_nbo2_volt_divide.htm
Down where it says [FONT=Arial, Arial, Helvetica]Special Notes on the HD NBO2 sensor
"[/FONT][FONT=Arial, Arial, Helvetica]You should never solder a O2 sensor wire because the sensor "will breathe" through the cable."[/FONT][FONT=Arial, Arial, Helvetica]

3. http://www.aa1car.com/library/o2sensor.htm
Down where it says HOW AN OXYGEN SENSOR WORKS
"[/FONT]The outside of the bulb is exposed to the hot gases in the exhaust while the inside of the bulb is vented internally through the sensor body to the outside atmosphere. Older style oxygen sensors actually have a small hole in the body shell so air can enter the sensor, but newer style O2 sensors "breathe" through their wire connector and have no vent hole."

Beans, next time you open your mouth to make fun of someone, get your facts straight.
 
sure those sources say that but stop and think about it, it makes no sense. how in the world is an electrical wire going to transport air?

sure as it notes maybe older sensor had a air vent, but its not true anymore.

also how do you explain universal O2 sensor which come with no connector and have to be wired?
 
Wow...simply stunning...

The air is carried through the HARNESS, in between the wires and the insulation.

And ALL O2 sensors have a vent of some sort for fresh air, because they need something to compare the exhaust gases to. The old styles used to vent through a little hole in the O2 sensor, but if you had an exhaust or oil leak, that would get foiled up and spoil the readings. NEW oxygen sensors vent through the ecu because that is fresh air that can't really be tampered with.

Universal O2 sensors use a vent hole in the O2 sensor like mentioned above.

Yeah and where did you guys get your automotive knowledge from?
 
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