Universal O2 Sensor

[1PairOfChoppers]

O2 sensor fouled on my 2000 150 Vmax OX66.

I'm wondering if anyone has looked into the NTK Universal O2 Sensor that splices onto the existing connectors. Some info here:

http://www.ngksparkplugs.com/t...ry=US


I found one with the same number and color of wires. This sensor looks almost identical to my original. Refer to this link:

http://cgi.ebay.com/ebaymotors...ZWDVW

I can't find the operating specs on the OEM NTK sensor or the universal version.

Anyone have any insight on the above or should I just bite the bullet and spend $280 for the Yamaha sensor?

[Hamfisted]

Heck for that price maybe you can make it work. Have you tried just cleaning your existing oxygen sensor?

Anyway there's 4 wires on the stock sensor.
Wiring on the stock Yamaha O2 sensor is:

Red/White wire & Black wire = Heater element
Grey wire & Black/White wire = Sensor element output


Looks like that one on Ebay is a 4 wire heated sensor so maybe it'll work Ok.

Mike

[1PairOfChoppers]

Thanks for the reply Mike.

I cleaned it and the bench test failed. It had so much carbon built up that even the dogbone was clogged tight. Based on what I observed while cleaning with Ring Free then Seafoam, I'll be using Seafoam from now on and cleaning this hummer annually. Seafoam dissolved the carbon alot quicker than Ringfree.

The biggest worry I have it making a water tight connection if I decide to spice one in. Solder and shrink tube should be good enough.

Talked to a Yamaha dealer this morning, they $400 for a new one! DOH!

[Hamfisted]

Heat shrink sealed butt connectors would work too. They sell them at Lowes in the electrical department if you have one in your neighborhood, or West Marine has 'em. But yes if you're good with solder work that'll work too.
Yes Sea Foam makes Ring Free look bad. I always have to do the plugs and the O2 sensor cleanout after I do a shock treatment.


Mike

[1PairOfChoppers]

Good news and some insight for someone else who may run into this.

I retested my O2 sensor with a different volt meter. Heated the tip with a lighter and got a .1v response rather quickly. Ohmed out the heater side of the sensor and got a 4ohm reading. The normal range is 2-14 ohms.

When I tested with my analog meter originally, I assumed black prob to black wire and red probe to gray wire. This gives a negative voltage reading, analog meter can't go negative. So, to get a positive voltage reading, red prob to black wire and black probe to gray wire. I figured this out after using a nice digital Fluke meter at the office.

Some more indirect info on the Universal O2 Sensor. I called tech support at NGK USA (parent company for NKT sensors) and gave the part number on the sensor. They couldn't find a after-market replacement. They said it was "probably a dealer specific part". This might explain the $400 dealer cost.

Thanks again Mike for the help.

[Kevin R.]

The part Number most are getting is NTK # 21006. Napa autoparts here sell them for around $47.

[mikeky]

Good news and some insight for someone else who may run into this.

I retested my O2 sensor with a different volt meter. Heated the tip with a lighter and got a .1v response rather quickly. Ohmed out the heater side of the sensor and got a 4ohm reading. The normal range is 2-14 ohms.

When I tested with my analog meter originally, I assumed black prob to black wire and red probe to gray wire. This gives a negative voltage reading, analog meter can't go negative. So, to get a positive voltage reading, red prob to black wire and black probe to gray wire. I figured this out after using a nice digital Fluke meter at the office.

Some more indirect info on the Universal O2 Sensor. I called tech support at NGK USA (parent company for NKT sensors) and gave the part number on the sensor. They couldn't find a after-market replacement. They said it was "probably a dealer specific part". This might explain the $400 dealer cost.

Thanks again Mike for the help.

This is what I used, it is an exact replacement. Just have to splice the old plug.

[Shumway]

Will these sensors work on a 01 0x66 225 Vmax?

[Amistad Tackle]

Concensus is the aftermarket won't last long. I tried and it lasted less than 50 hours. Bite the bullet and buy the OEM. Mine lasted almost 600 hours with annual cleaning.